Description
American Powertrain Pro-Fit TKX kit for 1955-57 Chevy Tri-Fives
- 30-50% increase in fuel economy
- Low RPM cruising for greatly reduced driver fatigue and an improved highway driving experience.
- Reduced engine wear leading to longer engine life
- Cooler engine operating temperatures
- Reduced NVH (noise – vibration – harshness)
TKX Gear Ratios
Select between 3 ratios
Our best seller is 17805 with the .68 OD works great with 3.55-4.11 gears
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 5th
This kit uses your stock 4-speed bellhousing.
26-spline clutch disk required
If you do not know what parts you need click here to get a quick quote or call our sales dept at 931-646-4836
Standard Kit includes:
NEW Tremec TKX 5-speed with streamlined case and 8000 rpm shift capability. No Cutting your floor!
AP Revolution Shifter Mechanism – Original 4-speed shift position
Bolt in Adjustable Crossmember for Tri-Fives
Driveshaft Slip Yoke – Cryogenically hardened steel (shortened driveshaft required)
Transmission Mount – Polyurethane
Reverse Light Harness – Weatherseal
Speedometer Conversion – Mechanical or Electronic
White Shifter Knob
Hardware, Instructions, Warranty
NOTE: Kit does NOT require modifications to tunnel, console or chassis. White Lightning shifter upgrade available.
Optional Parts:
- Hydramax Hydraulic Clutch
- Pilot Bearing
- Bell housing
- Flywheel
- Shifter
- Shifter Handle
