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