PerfectFit Automatic Transmission Kits

The A41 and A41X PerfectFit™ Kit!

Street Muscle Magazine, Hot Rod, Mopar Connection and several blogs say that this transmission will bring your car "into the 21st century!"


Replace your tired 904, 727, 518, Powerglide, TH350 (Turbo 350), TH400 (Turbo 400), 200R4 (200-4R) or 700R4 with modern technology that offers better acceleration and a 30% reduction in cruising rpms.


The A41 and A41X Automatic 4-Speed Transmissions

  • Based on GM's 4L60E
  • Low RPM cruising
  • Great shift quality
  • Dyno tested
  • Electronic Controller
  • Lockup Torque Converter with optional stall speeds


A41 and A41X Gear Ratios

3.06, 1.63, 1.00, 0.70


Available in Three Stages

Stage 1 - 450 Torque

Stage 2 - 550 Torque

Stage 3 - 650 Torque



2WD and 4WD GM and Mopar vehicles 

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