Product Description:
Hawks Motorsports offers our clients this 1968-1974 GM X-Body SST TREMEC Magnum 6-Speed Manual Transmission Conversion Kit | PerfectFit™ | GMXBODY-MAG-6874. This PerfectFit™ TREMEC Magnum 6-Speed upgrade provides classic GM X-Body vehicles with modern double overdrive performance, improved highway cruising, reduced RPM, and increased drivability.
Vehicle Configuration Required
Transmission conversion kits are vehicle specific. Complete the Hawks Motorsports Transmission Conversion Request Form before ordering so our team can verify compatibility and confirm the correct components for your application.
Designed for 1968-1974 GM X-Body vehicles, this SST TREMEC Magnum 6-Speed Conversion Kit fits Chevrolet Chevy II and Nova models along with Pontiac Ventura, Oldsmobile Omega, Buick Apollo, 1974 GTO, and Acadian applications.
The TREMEC Magnum 6-Speed provides a modern manual transmission solution for classic GM vehicles looking to improve performance, highway comfort, and overall driving experience. The double overdrive design allows for lower cruising RPM, reduced engine wear, cooler operating temperatures, and improved long-distance drivability.
This PerfectFit™ kit features the TREMEC T56 Magnum 6-Speed transmission with SST case customization, CNC machining, and application-specific components designed for proper fitment while maintaining factory-style shifter positioning.
KEY FEATURES:
- 1968-1974 GM X-Body manual transmission conversion kit
- Fits Chevrolet Chevy II and Nova
- Fits Pontiac Ventura, Oldsmobile Omega, Buick Apollo, 1974 GTO, and Acadian
- TREMEC T56 Magnum 6-Speed double overdrive transmission
- 700 lb-ft torque capacity
- Wide or close ratio gear options available
- PerfectFit™ SST case customization
- CNC machined transmission case for improved fitment
- Factory-style shifter positioning
- Friction lined synchronizer blocker rings for smooth high RPM shifts
- 30-50% potential fuel economy improvement
- Low RPM highway cruising
- Reduced engine wear
- Cooler engine operating temperatures
- Reduced NVH (noise, vibration, harshness)
- Crossmember included
- CAD-designed lightweight boxed crossmember
- Improved exhaust clearance compared to tubular or aluminum designs
- Driveshaft and slip yoke included
- Lightweight steel custom driveshaft
- Dynamically balanced driveshaft assembly
- Premium solid universal joints
- Mechanical and electronic speedometer compatibility
- Reverse light connector included
- Heavy-duty needle roller pilot bearing included
- Rubber isolator mount for vibration control
- Installation hardware included
- Detailed installation instructions
- Lifetime technical support
TREMEC MAGNUM GEAR RATIOS:
- Wide Ratio: 2.66, 1.78, 1.30, 1.00, 0.80, 0.63
- Close Ratio: 2.97, 2.10, 1.46, 1.00, 0.80, 0.63
KIT COMPONENTS INCLUDED:
- TREMEC T56 Magnum 6-Speed Double Overdrive Transmission
- Crossmember
- Custom Driveshaft and Slip Yoke
- Speedometer Connection Components
- Reverse Light Connector
- Pilot Bearing
- Isolator Mount
- Installation Hardware
- Detailed Installation Instructions
FITMENT APPLICATIONS
| Make | Model | Years |
|---|---|---|
| Chevrolet | Chevy II / Nova | 1968-1974 |
| Oldsmobile | Omega | 1973-1974 |
| Pontiac | Ventura | 1971-1974 |
| Buick | Apollo | 1973-1974 |
| Pontiac | GTO | 1974 |
| Acadian | Acadian | 1968-1971 |
INSTALLATION NOTES:
- Verify engine combination and drivetrain configuration before ordering.
- Transmission kits are application specific and require vehicle details for proper configuration.
- This kit is designed for manual transmission conversion applications.
- Additional components may be required depending on vehicle configuration.
- Driveshaft requirements may vary depending on final vehicle setup.
- Professional installation is recommended for drivetrain modifications.
- Installed or modified components may not be eligible for return. Confirm application details before installation.
