American Powertrain Pro‑Fit Magnum 6‑Speed Transmission Kit Chevy C/K 88‑98

The Pro‑Fit Magnum 6‑speed kit gives your 1988‑1998 Chevy C/K truck a modern double‑overdrive Tremec Magnum transmission. It allows for better highway cruising, cooler engine temperatures, and extended engine life. This kit delivers crisp shifting up to 8,000 RPM and handles up to 700 lb‑ft torque. The included mid‑shift conversion preserves factory shifter position with no tunnel, console, or chassis modifications.

Features and Benefits:
- Delivers 30‑50% increased fuel economy
- Reduces highway RPM for lower driver fatigue and quieter cruising
- Reduces NVH (Noise, Vibration, Harshness)
- Lowers engine stress and internal heat for extended engine life
- Smooth 6‑speed shifts up to 8,000 RPM
- Retains factory shifter position with no tunnel or chassis modifications
- Your choice of overdrive

Kit Includes:
- Tremec Magnum 6-Speed with streamlined case
- White Lightning Mid Shift Mechanism
- Cryogenically Hardened Steel Driveshaft Slip Yoke
- Polyurethane Transmission Mount
- Pilot Bearing with Stainless Rollers and grease
- Reverse Light Harness with Weatherseal
- Speedometer Conversion (Mechanical or Electronic)
- Shifter Knob
- Spacer Block for use with Stock Crossmember
- Hardware and Instructions

Please Note:
- Kit does NOT require modifications to tunnel, console, or chassis.
- Requires 6-speed bell housing and 26-spline clutch disk.
- Reuses the factory crossmember.

Vehicle Fitment:
- 1988‑1998 Chevy C/K