American Powertrain Pro-Fit TKK kit for 68-72 Chevelle GM A-body for factory 4-speed cars.
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 5th
This kit uses your stock 4-speed bellhousing.
Note: 26-spline clutch plate required to match the splines for the TKX. You can reuse you stock flywheel and pressure plate. Or call us to help you select a complete clutch package. Automatic to Manual conversions please call us for a quote or send a quote request. This way we can custom build your kit.
New Tremec TKX 5-speed with 600 ft/lbs of torque capacity. No cutting your tunnel!
Revolution Offset Shifter Mechanism – Original 4-speed shift position
Seamless DOM Driveshaft Assembly – Race Balanced, Solid U-Joints
Driveshaft Slip Yoke – Cryogenically hardened steel
Transmission Mount – Polyurethane
Pilot Bearing – Stainless rollers, grease pre-pak
Reverse Light Harness – Weatherseal
Speedometer Conversion – Mechanical or Electronic
Console Shift Pattern Plate
Hardware, Instructions, Warranty
Transmission sold separately
NOTE: White Lightning shifter upgrade available. Kit compatible with OE cross member. New X-factor cross member available option for hard tops only.