Description
American Powertrain Pro-Fit Magnum 6-speed kit for 1999-2006 GMC/ Chevy Trucks
- 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)
Tremec T56 Magnum Gear Ratios
Close Ratio 2.66, 1.78, 1.30, 1.00, 0.80, 0.63
Wide Ratio 2.97, 2.10, 1.46, 1.00, 0.74, 0.50
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
Kit includes:
- White Lightning Mid-Shift Mechanism
- Driveshaft Slip Yoke – Cryogenically hardened steel (new driveshaft required)
- Bolt in adjustable X-Factor Crossmember
- Transmission Mount – Polyurethane
- Pilot Bearing
- Bowler All In One Harness for adjusting speedometer output and reverse lock out
- Shifter Knob
- Hardware, Instructions, Warranty
Optional Parts:
- Hydramax Hydraulic Clutch
- Clutch Pedal
- Pilot Bearing
- Bell housing
- Flywheel
- Shifter Handle
NOTE: If you are doing a Automatic to Manual conversion you will need some ECU tuning to keep the engine out of limp mode. We recommend using the HP Tuners software or find a reputable shop to help with the tune. Its quick to have done.
