The Infiniti G35‚ known for its powerful V6 engine‚ offers a thrilling driving experience․ Converting from automatic to manual transmission enhances driver control‚ engagement‚ and cost-efficiency․ This guide provides a comprehensive overview of the swap process‚ benefits‚ and considerations for enthusiasts seeking to upgrade their G35’s performance and driving dynamics․
Overview of the G35 Model
The Infiniti G35‚ produced from 2003 to 2008‚ is a rear-wheel-drive sports sedan and coupe known for its powerful VQ35DE 3․5L V6 engine․ It combines sleek styling‚ agile handling‚ and a luxurious interior‚ making it a favorite among driving enthusiasts․ The G35 is closely related to the Nissan 350Z‚ sharing many mechanical components․ Initially offered with an automatic transmission‚ the G35’s sporty nature has led many owners to explore manual transmission conversions․ This model’s performance potential‚ paired with its affordability‚ has made it a popular choice for modifications‚ including the sought-after automatic-to-manual swap․
Why Convert from Automatic to Manual Transmission?
Converting the G35 from automatic to manual transmission offers enhanced driving engagement and control․ Manual transmissions provide better fuel efficiency‚ lower maintenance costs‚ and improved performance․ Drivers gain direct control over gear shifts‚ enabling a more immersive driving experience․ Additionally‚ manual transmissions often last longer than automatics‚ reducing long-term repair expenses․ For enthusiasts‚ the manual swap is a way to personalize their vehicle‚ making it stand out while improving its sporty character․ This modification is particularly appealing to those seeking a more connected and rewarding driving experience‚ aligning with the G35’s performance-oriented design․
Benefits of a Manual Transmission Swap
A manual transmission swap for the G35 offers numerous advantages‚ including enhanced driver engagement and control․ Manual transmissions typically provide better fuel efficiency and lower long-term maintenance costs compared to automatics․ They also allow for more precise gear control‚ improving acceleration and performance․ Additionally‚ manual transmissions are often more durable and require less complex repairs․ For enthusiasts‚ the swap adds a sporty‚ personalized touch to the vehicle‚ making it more unique and aligned with its performance-oriented design․ Overall‚ the benefits of a manual transmission swap make it a rewarding upgrade for those seeking a more connected and cost-effective driving experience․
Understanding the G35 Transmission Systems
The G35 offers both automatic and manual transmission options‚ each designed for specific driving preferences․ This section explores their differences and functions to inform swap decisions effectively․
Differences Between Automatic and Manual Transmissions
Automatic transmissions offer ease of use‚ especially in heavy traffic‚ as they shift gears automatically without driver input‚ making them suitable for casual driving․ Manual transmissions‚ however‚ provide greater control over gear selection‚ enhancing driving engagement and performance․ They typically require more skill and effort‚ as drivers must operate a clutch pedal and manually shift gears․ Automatics are generally more expensive to maintain and repair‚ while manuals often offer better fuel efficiency and lower long-term costs․ The choice between the two depends on driving preferences‚ lifestyle‚ and the desired balance between convenience and driver involvement․ Each system has its unique advantages․
G35 Automatic Transmission Overview
The Infiniti G35 automatic transmission is a 5-speed RE5R05A unit‚ designed for smooth and seamless gear shifts․ It features electronic controls for optimal performance and includes a manual shift mode for driver input․ This transmission is well-suited for casual driving‚ offering ease of use in urban and highway conditions․ However‚ it lacks the direct driver engagement and fuel efficiency of a manual setup․ Over time‚ automatic transmissions can incur higher maintenance costs compared to manuals․ Despite its reliability‚ the automatic transmission’s limitations in performance and control have led many enthusiasts to consider a manual swap for enhanced driving dynamics and cost savings․
G35 Manual Transmission Overview
The G35 manual transmission‚ typically a 6-speed CD009 unit‚ offers precise control and enhanced driving engagement․ It is lightweight‚ durable‚ and designed for high-performance applications; This transmission is often sourced from the Nissan 350Z or other compatible models‚ making it a popular choice for swaps․ The manual setup provides better fuel efficiency‚ lower long-term maintenance costs‚ and superior acceleration compared to the automatic version․ However‚ it requires additional components like a clutch‚ flywheel‚ and modified driveshaft for proper installation․ The manual transmission is ideal for enthusiasts seeking a more connected and dynamic driving experience‚ though it demands more driver involvement and skill․
Compatibility of Manual Transmission with G35 Engine
The G35’s VQ35DE engine is fully compatible with a manual transmission‚ particularly the Nissan CD009 6-speed unit commonly used in swaps․ This engine-transmission pairing delivers improved power delivery and efficiency․ The manual transmission bolts directly to the engine with minimal modifications‚ ensuring a straightforward installation․ Key components like the pilot bearing‚ flywheel‚ and driveshaft must be adapted to ensure proper fitment․ The compatibility ensures smooth operation and optimal performance‚ making the swap a viable option for enhancing driving dynamics and responsiveness․ Proper alignment and component matching are essential to maintain reliability and maximize the benefits of the manual transmission setup․
Planning the Manual Transmission Swap
Assessing feasibility‚ identifying components‚ and estimating costs and time are crucial steps in planning a successful G35 automatic to manual transmission swap․
Assessing the Feasibility of the Swap
Evaluating the practicality of converting a G35 from automatic to manual involves checking compatibility‚ cost‚ and time․ Ensure the manual transmission and components like the flywheel‚ clutch kit‚ and driveshaft are compatible with the VQ35DE engine․ Budget for parts‚ tools‚ and potential labor costs․ Assess your mechanical expertise and access to specialized tools․ Consider the time required for disassembly‚ inspection‚ and reassembly․ Troubleshooting common issues like fluid leaks or gear engagement problems must also be planned․ While the swap is feasible‚ it demands careful planning and execution to avoid complications and ensure a smooth transition to manual driving․
Identifying Necessary Components for the Swap
Converting the G35 from automatic to manual requires specific components․ The manual transmission‚ compatible with the VQ35DE engine‚ is essential‚ along with a matching flywheel and clutch kit․ The driveshaft must be adjusted or replaced to fit the manual setup․ A shifter assembly‚ clutch pedal‚ and master/slave cylinders are also necessary․ Additionally‚ hydraulic lines‚ transmission mounts‚ and a pilot bearing are required․ Ensure the ECU is reprogrammed for manual operation․ Wiring harness modifications may be needed for clutch and gear position sensors․ Lastly‚ check for compatibility of the rear differential and consider upgrading bushings for better drivetrain stability․ OEM or aftermarket parts are recommended for reliability and performance․
Tools and Equipment Required
Performing a G35 automatic to manual swap requires specific tools and equipment․ Essential tools include wrenches‚ sockets‚ screwdrivers‚ and pliers for disassembly․ A transmission jack is crucial for safely handling the heavy transmission unit․ Specialized tools like a flywheel puller and clutch alignment tool are necessary for installing the manual components․ Additionally‚ a hydraulic press may be needed for pilot bearing installation․ Brake bleeding tools are required for the clutch hydraulic system․ Protective gear such as gloves and eyewear is recommended․ A drain pan and fluid disposal supplies are needed for handling transmission and hydraulic fluids․ Ensure access to a service manual or repair guide for detailed instructions and safety precautions during the swap․
Estimated Cost and Time for the Swap
The cost of a G35 automatic to manual swap can range from $4‚000 to $7‚500‚ depending on the source of the manual transmission and additional components needed․ A used transmission like the CD009 typically costs $1‚500 to $2‚500‚ while a new unit can exceed $3‚000․ Other expenses include the clutch kit‚ flywheel‚ driveshaft‚ and labor if hiring a professional․ The time required for the swap varies from 20 to 40 hours‚ depending on mechanical expertise․ DIY enthusiasts with experience may complete it in 20-30 hours‚ while novices might take longer․ Planning and sourcing parts in advance can help reduce delays and costs․
Preparing the Vehicle for the Swap
Drain fluids‚ disconnect the battery‚ and remove the automatic transmission․ Inspect and prepare the drivetrain for the manual setup․ Ensure all components are clean and ready for installation․
Draining Fluids and Disconnecting Battery
Begin by disconnecting the battery to prevent electrical complications․ Drain the automatic transmission fluid (ATF) and coolant to avoid spills during removal․ Use a drain pan to catch fluids‚ ensuring environmental safety․ Inspect the transmission pan and surrounding components for wear or damage․ Clean the area thoroughly to prepare for the manual transmission installation․ This step is crucial for a smooth swap and prevents contamination of new components․ Proper disposal of drained fluids is recommended․ Always follow safety guidelines when handling automotive fluids and electrical systems․
Removing the Automatic Transmission
Start by disconnecting the battery to ensure no electrical issues arise during the process․ Locate the transmission pan at the bottom of the automatic transmission and drain the fluid into a pan․ This step prevents messy spills and makes the removal cleaner․ Use jack stands or an engine hoist to securely support the engine‚ preventing it from shifting or dropping during transmission removal․
Disconnect the driveshaft‚ marking its position for proper realignment later․ Remove the transmission lines carefully to avoid fluid leakage․ Take out the torque converter‚ as it won’t be needed for the manual transmission․ Unbolt the transmission from the engine‚ ensuring not to strip any bolts‚ and carefully pull it away․ Remove the crossmember and mounts‚ supporting the transmission to prevent damage․ Finally‚ lift the transmission out‚ ensuring safety and clarity in the workspace․ Label and note all components for later reassembly․
Inspecting and Preparing the Drivetrain
After removing the automatic transmission‚ inspect the drivetrain for any wear or damage․ Ensure the rear differential is compatible with the manual transmission‚ as mismatched components can lead to poor performance․ Check the driveshaft and axles for damage or excessive play‚ as these may need replacement or adjustment․ Clean the drivetrain components thoroughly to remove dirt and old transmission fluid‚ ensuring a smooth installation process․ Additionally‚ verify that the driveshaft is properly balanced and aligned‚ as this is critical for the manual transmission’s operation․ Any issues found during inspection should be addressed before proceeding with the manual transmission installation to avoid future problems․
Installing the Manual Transmission
Mounting the manual transmission requires precise alignment and secure fastening․ Proper installation ensures smooth operation‚ with driveshaft and axles reconnected for optimal performance and reliability․
Mounting the Manual Transmission
Mounting the manual transmission involves aligning it with the engine and drivetrain․ Use a transmission jack to lift and position the unit carefully․ Ensure the pilot bushing is installed to guide the input shaft into the clutch․ Align the transmission mounting points with the chassis and secure it using the appropriate bolts․ Tighten all fasteners in the correct sequence to avoid misalignment․ Properly fastening the transmission ensures smooth operation and prevents damage to surrounding components․ Double-check the alignment before final tightening to guarantee a precise fit and optimal performance․
Connecting the Driveshaft and Axles
Connecting the driveshaft and axles is a critical step in the manual transmission swap․ Begin by ensuring the driveshaft is compatible with the manual transmission‚ as automatic and manual transmissions often have different spline counts and lengths․ Inspect the axles for wear and damage‚ replacing them if necessary․ Properly align the driveshaft with the transmission and differential‚ using alignment marks or tools to ensure accuracy․ Secure the driveshaft with the appropriate bolts and torque them to specifications․ Reconnect the axles to the hubs and transmission‚ ensuring they are fully seated and secured․ Finally‚ check for any vibrations or misalignment by test-driving the vehicle at low speeds․
Installing the Clutch and Flywheel
Installing the clutch and flywheel is a precise process that requires careful attention to detail․ Begin by inspecting the flywheel for any damage or wear and resurface it if necessary․ Install the new flywheel using the correct bolts and torque them to specifications․ Next‚ align and mount the clutch kit‚ ensuring the pressure plate and clutch disc are properly seated․ Use an alignment tool to center the clutch disc correctly․ Finally‚ connect the clutch slave cylinder to the transmission and bleed the hydraulic system to ensure proper engagement․ Proper installation ensures smooth clutch operation and prevents future issues․
Setting Up the Shifter and Linkage
Setting up the shifter and linkage is crucial for precise gear engagement․ Begin by installing the manual shifter assembly‚ ensuring it is securely mounted and aligned with the transmission․ Connect the shift linkages to the transmission and adjust them to achieve proper mechanical advantage․ Align the gear lever with the transmission’s gear selector fork‚ ensuring smooth and accurate shifting․ Tighten all bolts and connectors to factory specifications․ Finally‚ test the system by shifting through all gears to confirm proper engagement and operation․ Proper setup ensures a responsive and precise driving experience‚ making the manual swap worthwhile for enthusiasts seeking enhanced control․
Finalizing the Swap
Reconnect electrical systems‚ bleed clutch hydraulics‚ and refill transmission fluid․ Reconnect the battery‚ test the system‚ and ensure all components function properly before final inspection and test drive․
Reconnecting Electrical Systems
Reconnecting electrical systems is a critical step in the manual swap process․ Ensure all wiring harnesses are properly reconnected to the new manual transmission components․ The ECU must be updated to recognize the manual setup‚ and components like the reverse light switch and starter motor should be linked․ Use OEM-compatible connectors to maintain reliability․ Improper connections can lead to drivetrain issues or electrical faults․ Double-check all wiring before proceeding․ Once reconnected‚ test the system to ensure proper functionality․ If unsure‚ consult a professional to avoid potential damage or safety hazards․ Accurate reconnection is vital for optimal performance and reliability post-swap․
Bleeding the Clutch Hydraulics
Bleeding the clutch hydraulics is essential to ensure proper clutch engagement․ Start by using a clutch bleeding kit to remove air from the system․ Attach the kit to the clutch slave cylinder and pump the clutch pedal several times to circulate the fluid․ Repeat this process until the fluid flows freely without bubbles․ Use the correct type of brake fluid recommended for your G35․ If air remains in the system‚ it can cause spongy pedal feel or poor clutch engagement․ Once complete‚ test the clutch pedal to ensure a firm and responsive feel․ Proper bleeding ensures smooth operation of the manual transmission․
Refilling Transmission Fluid
Refilling transmission fluid is a critical step after installing the manual transmission․ Use the specified GL-4 gear oil to ensure compatibility with the G35’s manual gearbox․ Locate the transmission filler plug‚ typically found on the top or side‚ and use a fluid pump or funnel to pour in the required amount․ Refer to the manual or manufacturer’s guidelines for the correct fluid capacity․ Replace the filler plug securely and start the engine to circulate the fluid․ Check for leaks around the plug and test drive the vehicle to ensure smooth gear shifts․ Proper fluid levels are essential for optimal transmission performance and longevity․
Reconnecting the Battery and Testing
Reconnecting the battery is the final step before testing the manual transmission swap․ Ensure all electrical connections are secure and double-check for any loose wires․ Reconnect the negative terminal first‚ then the positive‚ to avoid sparks․ Start the engine and allow it to idle‚ observing the dashboard for any warning lights․ Test the clutch pedal feel and gear engagement․ Take the vehicle for a test drive in a safe area to ensure smooth shifting and proper transmission function․ Monitor for any unusual noises or behaviors․ If everything operates as expected‚ the swap is complete and the G35 is ready for manual driving enjoyment․
Troubleshooting Common Issues
Common issues after a G35 automatic to manual swap include leakages‚ gear engagement problems‚ and electrical or hydraulic malfunctions․ Addressing these requires thorough inspection and adjustments․
Addressing Leakages and Fluid Loss
Leaks and fluid loss are common issues post-swap‚ often originating from the transmission pan‚ drain plugs‚ or bellhousing․ Inspect all seals and gaskets for damage or improper installation․ Replace any faulty components and ensure all connections are tightened to factory specifications․ Fluid loss can lead to transmission damage‚ so monitor levels closely․ Use the correct GL-4 gear oil for manual transmissions and avoid overfilling․ If leaks persist‚ consider resealing the transmission or consulting a specialist․ Regular maintenance and thorough inspections can prevent these issues‚ ensuring optimal performance and longevity of the manual transmission system in your G35․
Fixing Gear Engagement Problems
Gear engagement issues after a manual swap often stem from improper clutch alignment or hydraulic system setup․ Ensure the clutch is properly installed and the master/slave cylinders are functioning correctly․ Adjusting the clutch pedal’s free play and bleeding the hydraulic system can resolve many problems․ Verify that the flywheel and pressure plate are correctly fitted․ If issues persist‚ consulting a specialist is recommended to ensure proper functionality and prevent further complications․ Regular maintenance and inspections are crucial to maintain smooth gear engagement in the G35 manual transmission swap․
Resolving Electrical or Hydraulic Issues
Electrical or hydraulic issues after a manual swap can arise from faulty sensors‚ wiring‚ or hydraulic leaks․ Check the clutch master and slave cylinders for proper function and ensure the hydraulic lines are sealed․ Verify the reverse light switch and neutral safety switch are connected correctly‚ as these are crucial for manual operation․ Inspect electrical connectors for damage or corrosion and replace any faulty components․ Bleeding the hydraulic system thoroughly can resolve spongy pedal issues․ If problems persist‚ consult a professional mechanic or refer to the factory service manual for detailed troubleshooting steps․ Proper diagnostics are key to restoring smooth functionality․
Adjusting the Clutch Pedal and Master Cylinder
Adjusting the clutch pedal and master cylinder is crucial for smooth operation after a manual swap․ Begin by ensuring the master cylinder is properly seated and connected to the clutch slave cylinder․ Inspect for any hydraulic leaks and tighten connections as needed․ Bleed the system thoroughly to remove air bubbles‚ which can cause a spongy pedal feel․ Adjust the pedal height and free play according to the manufacturer’s specifications for optimal engagement․ Test the clutch engagement by pressing the pedal and shifting through gears to ensure proper function․ Regular maintenance and precise adjustments will ensure reliable performance and prevent premature wear on components․
Post-Swap Maintenance and Care
Regular maintenance is essential after a manual swap․ Monitor clutch and transmission fluid levels‚ inspect for leaks‚ and schedule periodic inspections to ensure optimal performance and longevity․
Breaking in the New Clutch
Properly breaking in the new clutch is crucial for ensuring its longevity and performance․ Avoid aggressive driving for the first 500 miles‚ as this allows the clutch and flywheel to mate evenly․ Use gradual acceleration and avoid riding the clutch․ When stopping‚ downshift before coming to a complete stop to reduce wear․ Light‚ even engagement of the clutch pedal helps prevent premature wear․ This break-in period ensures the clutch facings seat properly‚ providing smooth and consistent engagement․ Proper care during this phase will maximize the lifespan of your manual transmission components․
Monitoring Transmission Fluid Levels
Regularly monitoring the transmission fluid level is essential for maintaining the health of your manual transmission․ Use a high-quality GL-4 gear oil‚ as specified in your owner’s manual․ Check the fluid level every 5‚000 to 7‚500 miles or during routine oil changes․ Locate the filler plug on the side of the transmission and use a socket wrench to remove it․ Insert the dipstick to measure the fluid level‚ ensuring it reaches the recommended mark․ Avoid overfilling‚ as this can lead to leaks and damage․ Always use the correct fluid type to prevent wear on synchronizers and gear components․
Scheduling Regular Maintenance
Regular maintenance is crucial for the longevity and performance of your manual transmission after the swap․ Schedule transmission fluid changes every 30‚000 to 60‚000 miles‚ depending on driving conditions․ Replace the transmission filter every 30‚000 miles to ensure optimal fluid flow․ Inspect the clutch and flywheel for wear every 15‚000 miles or when symptoms like slippage occur․ Check the axles and driveshaft for damage or excessive play annually․ Maintain proper alignment of the shifter and linkage to prevent misalignment issues․ Follow the manufacturer’s recommendations for lubricating moving parts‚ such as the shift linkage and clutch master cylinder․ Routine checks will help prevent costly repairs and ensure smooth operation․
Upgrading or Adjusting Components as Needed
After completing the manual swap‚ upgrading or adjusting components can further enhance performance and reliability․ Consider upgrading the clutch and flywheel for improved durability under heavy use․ Transmission mounts and bushings may need replacement to reduce vibration and ensure smooth shifting․ The driveshaft and axles should be inspected and upgraded if necessary to handle increased torque․ Additionally‚ the ECU may require reprogramming to optimize engine and transmission communication․ Brake pedals and master cylinders can be adjusted or upgraded for better feel and responsiveness․ Finally‚ consider lightweight components like aluminum driveshafts to improve power delivery․ Regular inspections and adjustments ensure everything functions seamlessly․
The G35 automatic to manual swap offers enhanced driving satisfaction and control‚ making it a rewarding project for enthusiasts willing to invest time and effort․
The G35 automatic to manual swap involves several key steps‚ starting with assessing feasibility and gathering necessary components like the transmission‚ flywheel‚ clutch‚ and driveshaft․ Mechanical modifications include removing the automatic transmission‚ installing the manual unit‚ and connecting the drivetrain․ Electrical and hydraulic systems‚ such as the shifter linkage and clutch hydraulics‚ must also be set up․ Post-swap tasks include bleeding the clutch system‚ refilling fluids‚ and testing the setup․ Proper planning‚ specialized tools‚ and attention to detail are crucial for a successful conversion․ Regular maintenance and monitoring are recommended to ensure longevity and performance․
Final Thoughts on the Benefits and Challenges
Converting the G35 from automatic to manual offers enhanced driver engagement and control‚ making it a rewarding modification for enthusiasts․ The process‚ however‚ presents challenges like significant time investment‚ specialized tools‚ and potential costs․ Success requires meticulous planning‚ proper parts selection‚ and skilled execution․ While the benefits of improved driving dynamics and mechanical connection to the car are substantial‚ careful consideration of personal skill level and resources is essential․ Ultimately‚ the swap can transform the G35 into a more responsive and enjoyable vehicle‚ provided challenges are met with thorough preparation and execution․