TransGo Performance Parts and Accessories

Automatic Transmission Shift Kit, Automatic Transmission Valve Body Repair Kit, 8L90E, Cadillac, Chevrolet, GMC, Kit

Part Number: TRG-SK-8L90

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Automatic Transmission Shift Kits, THM 200-4R, 1981-90, Kit

Part Number: TRG-200-4R-HD2-A

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GM 8L90: Late S4 Valve Tool Kit (Oversized)

Part Number: TRG-8L90S4LATETK

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All RFE: Billet Accumlator Piston and Ring Kit

Part Number: TRG-RFEACMPSTKIT

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GM 6L45-90E: PR Valve Tool Kit (Oversized)

Part Number: TRG-6L80-PR-TK

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Estimated Ship Date: Feb 23, 2026 if ordered today

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GM 6L45-90E: Unbreakable HP Pump Ring & Spring Kit

Part Number: TRG-6L80-PKH

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All RFE: TCC Regulator Valve (Oversized) 2019-On

Part Number: TRG-S0009

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GM 8L90: Late S4 Valve (Oversized)

Part Number: TRG-8L90S4LATEOS

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GM 6L45-90E: PR Valve (Oversized)

Part Number: TRG-6L80-PR-OS

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Dodge RFE: All 2019-On - Includes billet accumulator pistons, Use with RFE-PP-ODHP when increased OD clutch capacity is desired.

Part Number: TRG-RFE-HP-19UP

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Estimated Ship Date: Feb 23, 2026 if ordered today

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GM 6L45-90E: AFL Valve Tool Kit (Oversized)

Part Number: TRG-6L80-AFL-TK

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Automatic Transmission Shift Kits, Valve Body Repair, C4, C5, Kit

Part Number: TRG-SKC5

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Reprogramming Kit, Auto Trans, Subaru, Kit

Part Number: TRG-5EAT-HD2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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GM 6L45-90E: AFL Valve (Oversized)

Part Number: TRG-6L80-AFL-OS

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Estimated Ship Date: Feb 23, 2026 if ordered today

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4L80E: PR Valve & End Plug (Drop-in) Line to Lube built-in (2nd Design)

Part Number: TRG-4L80E-PR

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Estimated Ship Date: Feb 23, 2026 if ordered today

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All RFE: TCC Regulator Valve Reamer 2019-On

Part Number: TRG-S0010

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Allison LCT: 2011-2019

Part Number: TRG-ALLISON-11UP

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Estimated Ship Date: Feb 23, 2026 if ordered today

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LUBE CORRECTION KIT

Part Number: TRG-HONDA-LK2

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Estimated Ship Date: Feb 23, 2026 if ordered today

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THM 125/C: 1980-00

Part Number: TRG-SK-125

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Estimated Ship Date: Feb 23, 2026 if ordered today

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4L80E: PR & Boost Line-up (Drop-in) Line to Lube built-in

Part Number: TRG-4L80E-PRBST

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Ford 2-Speeds 1959-1965

Part Number: TRG-SK-2

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Dodge 48RE:Converts 46/47 RE Valve Body to Shift -kitted 48RE

Part Number: TRG-SK-48RE-CV

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Estimated Ship Date: Feb 23, 2026 if ordered today

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GM 6T40 G3: Lube Regulator Valve (Oversized)

Part Number: TRG-6T40G3-LB-OS

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Estimated Ship Date: Feb 23, 2026 if ordered today

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GM 8L90: PR Valve, Shuttle Valve and Bushing Lineup

Part Number: TRG-8L90PRBSTOES

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Estimated Ship Date: Feb 23, 2026 if ordered today

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