This 340-HD2 Reprogramming Kit fits 1985 and newer Toyota, Lexus, Isuzu, Mitsubishi, Hyundai, Kia and Jeep vehicles equipped with the A340, A341, A343 and AW4 series automatic transmissions.

Features and benefits:

This TransGo Reprogramming Kit comes with everything you need to recalibrate the accumulators, feed orifices as well as pressure regulation for street, strip and off road. The resulting increases clutch plate durability and produces short-firm shifts that are perfect for hot rods as well as work trucks. In addition, when using the included optional low hold 1-2 shift valve, the transmission will stay in low gear with lever in manual low position.

The kit also includes a drop-in USA-made hardened steel TCC relay boost valve and bushing that restores the hydraulic circuit integrity for all type two, three and four valve bodies except some Lexus models. This hardened steel boost valve and bushing assembly provides you with a durable direct replacement for the soft aluminum OEM assembly that is prone to wear. The kit can also be installed with the transmission in vehicle.

Corrects/Prevents/Reduces:
  • Soft shifts
  • Burnt clutch plates in hot rod and work truck application
  • TCC slip and overheating on type two, three and four valve bodies due to wear at the lock-up relay valve
Includes:
  • USA-made hardened steel TCC relay boost valve and bushing
  • Blue pressure regulator valve spring
  • Orange pressure regulator valve spring and washer
  • USA-made hardened steel 1-2 shift valve, ball, pin and rivet
  • Red cut back valve spring
  • Blue cut back valve spring
  • White cut back valve spring
  • Short accumulator spacer
  • Medium accumulator spacer
  • Long accumulator spacer
  • (2) Blue accumulator springs
  • Orange accumulator spring
  • White accumulator spring
  • Red accumulator spring
  • Plain accumulator spring
  • (5) Drill bits
  • TransGo sticker

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