Strength where it Counts
700 lb/ft of torque capacity
American Powertrain ProFit Magnum 6-Speed Kit for 1978-88 GM G-body. The centerpiece of TREMEC's high performance line-up, the Magnum 6-speed takes our state-of-the-art OEM technology and pairs it with the most popular flexibility features of the all-business TKO. The result is a double-overdrive transmission that easily tolerates up to 7800 rpm and 700 lb-ft. of torque, delivers unbelievable sophistication, and is far more flexible than any other 6-speed in the market. Known in its OE form as the TR-6060, the Magnum is an aftermarket variant of the same transmission found in many of today's most revered factory muscle cars; meaning refinement where you want it and strength where it counts.
Reasonably light at 135 lbs. dry
Multiple shifter locations & dual speedo pickups for unmatched versatility
Choice of two different gear ratio sets with unique double overdrive ratios
Incredibly short, extremely low-effort shift throws, with crisp, precise engagement
Modern OE supercar technology for the ultimate pro-tourers, road-racers, and more.
Tech Specs:
Gear ratios:1st 2.66, 2nd 1.78, 3rd 1.30, 4th 1:1, 5th .80 and 6th .63
26-spline input shaft.
31 spline output.
4616 chromoly gears and shafts
One-piece counter shaft
Triple cone synchros
700ft-lb Constant Load Rated
Kit includes:
Magnum 6-speed, Tremec 11009
AP Revo shifter for correct shift position.
Drive shaft slip yoke.
L241507 Crossmember
Poly Trans mount
Reverse light harness
Speedometer conversion, mechanical or electric.
Pilot Bearing
White shifter knob.
Hardware and instructions
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
