General Motors TREMEC & A41 Conversion Kits

General Motors Tremec Transmission KitsTREMEC TKO 5-Speed, TREMEC Magnum 6-Speed, and SST's A41 Automatic 4-Speed PerfectFit™ Overdrive Transmission Kits are the simplest and most cost-effective way to convert to a modern overdrive.  Silver Sport Transmissions CNC machines the cases and tailhousings of the TREMEC TKO and TREMEC Magnum to streamline them as much as possible. Our compact shifters provide the best fit and shift quality available.

 

Our PerfectFit™ Conversion Kits come with all the parts neccesary to convert your Buick, Chevrolet, GMC, Oldsmobile, Pontiac and other General Motors cars, trucks and street rods into a modern overdrive 5 or 6-speed or 4-speed automatic. Don't just compare our kit prices by the bottom line! Compare each item, you may find other companies have left off some important parts, either because they're not available or come at extra cost. SST is proud to offer the most complete conversion kits available with no fine print.

Give us a call or send an email, we'll be happy to discuss your project. 

 

Pick a vehicle below to learn more about our PerfectFit™ TREMEC TKO, TREMEC Magnum and SST A41 Overdrive Kits

A Body 1964 - 1967
  • Chevelle
  • Tempest
  • GTO
  • El Camino
  • LeMans
  • Skylark
  • 442
  • Cutlass
  • Beaumont
  • Special
A Body 1968 - 1972
  • Chevelle
  • Cutlass
  • Skylark
  • GS
  • 442
  • GTO
  • Tempest
  • Monte Carlo
  • El Camino
  • LeMans
  • Grand Prix
B Body 1958-1970
  • Impala
  • Caprice
  • Bel Air
  • Bonneville
  • Grand Prix
  • Catalina
  • Biscayne
GM G-Body 1978-1987
  • Regal
  • El Camino
  • Malibu
  • Monte Carlo
  • Caballero
  • Cutlass Supreme
  • Cutlass Cruiser
  • Cutlass Salon
  • Bonneville
  • Grand Prix
Tri-Five 1955-1957
  • Bel Air
  • 150
  • 210
  • Nomad
X Body Chevy II Nova 1962-1974
  • Chevy II
  • Nova
  • Omega
  • Venture
  • Apollo
  • 1974 GTO
  • Acadian