Product Description:
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Hawks Motorsports offers our clients this 1965-1970 GM B-Body Manual to TREMEC TKX 5-Speed Conversion Kit | GMGBODY-MTM-6570. Designed specifically for vehicles that already have a manual transmission, this PerfectFit™ kit upgrades your factory drivetrain with the modern TREMEC TKX 5-speed overdrive transmission while maintaining factory-style fitment and shifter positioning.
This Manual-to-Manual conversion kit is the ideal solution for owners looking to replace their original 3-speed or 4-speed manual transmission with a stronger, smoother shifting transmission that provides improved highway drivability, lower cruising RPM, and increased performance. Unlike automatic-to-manual conversion kits, this package does not include clutch, flywheel, pedal, or hydraulic conversion components because the vehicle is already equipped with a manual drivetrain.
The TREMEC TKX features a compact rounded case design, 600 lb-ft torque capacity, and the ability to handle shifts up to 7,500 RPM. With available wide and close ratio gearsets, the TKX provides excellent acceleration while delivering comfortable overdrive cruising for street-driven classic GM B-Body vehicles.
Vehicle Applications:
| Make | Model | Year Range |
|---|---|---|
| Chevrolet | Impala | 1965-1970 |
| Chevrolet | Caprice | 1965-1970 |
| Chevrolet | Bel Air | 1965-1970 |
| Chevrolet | Biscayne | 1965-1970 |
| Pontiac | Bonneville | 1965-1970 |
| Pontiac | Grand Prix | 1965-1970 |
| Pontiac | Catalina | 1965-1970 |
TREMEC TKX Features:
- Designed for manual-to-manual transmission upgrades
- TREMEC TKX 5-Speed Overdrive Transmission
- Handles up to 600 lb-ft of torque
- Capable of 7,500 RPM shifts
- Compact rounded transmission case
- Reduced transmission tunnel clearance requirements
- 30-50% increase in fuel economy potential
- Lower RPM highway cruising
- Reduced engine wear and operating temperatures
- Reduced noise, vibration, and harshness (NVH)
- Compatible with mechanical or hydraulic clutch actuation
TKX Gear Ratios:
- Wide Ratio: 3.27, 1.98, 1.34, 1.00, 0.72
- Close Ratio: 2.87, 1.89, 1.28, 1.00, 0.68 OR 0.81
Silver Sport Transmissions Kit Components:
- TREMEC TKX 5-Speed Overdrive Transmission
- STX Shifters® - True offset for factory-correct shifter positioning
- Heavy-duty pilot bearing with lubrication seal
- CAD-designed lightweight boxed crossmember
- Rubber isolator mount for vibration control
- Mechanical and electronic speedometer compatibility
- Waterproof reverse light connector
- Slip yoke
- Installation hardware
- Detailed installation instructions
- Lifetime technical support
- Market-leading warranty
Installation Notes:
- This kit is intended for vehicles already equipped with a manual transmission.
- Automatic-to-manual conversion components are not included.
- Flywheel, clutch assembly, pedals, bellhousing, and hydraulic clutch components are not included.
- Driveshaft is not included and may be purchased separately.
- Verify drivetrain configuration before ordering.
- Professional installation is recommended for drivetrain modifications.
