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  • GR Series Transmission Install: Part 1 - T56 Magnum Reverse Lockout Mod
  • Post author
    Joel Grannas
  • techvideo

GR Series Transmission Install: Part 1 - T56 Magnum Reverse Lockout Mod

As part of a short series of videos I will be doing a full swap on this Lexus SC300 that is currently in the shop. This series will act as a start-to-finish install guide for my GR-Series Magnum kits. Most of the this install information is also cross-compatible between other car makes and models (like the Supra, IS300, and others).

sc300 t56 magnum swap grannas racing gr700 gr900 gr1000

The video below will guide you through the first part of the install, which is four quick and easy steps:

  1. Install billet plug in mechanical speed sensor hole
  2. Modify the reverse lockout solenoid so we can use reverse without any electronics
  3. Trim the front case of the transmission for clearance in the Supra/SC300/IS300
  4. Install the relocation shifter (Supra/SC300)