GMC TransGo Performance Transmissions

Shift Kit, Performance, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH350, 1969-81, Kit

Part Number: TRG-350-1-2

4.41 out of 5 stars ( 56 )

Estimated Ship Date: Today

Shift Kit, Shift Improvement, ISO-CON Valve, GM, 4L60E, 4L65E, 4L70E, 4L75E, Each

Part Number: TRG-SK4L60E

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

Shift Kit, Shift Improvement, without Auxiliary Valve Body, GM, 700R4, 4L60, Each

Part Number: TRG-SK700

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Specialty Components, 6L45, 6L50, 6L80, 6L90 Drop-in Pressure Regulator Valve Repair Kit

Part Number: TRG-6L8-VL-PR3

Not Yet Reviewed

Estimated Ship Date: Today

Shift Kit, Performance, Chevy, GMC, Allison, 1000, 2000, 2400, Kit

Part Number: TRG-SKALLISON-JR

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

Shift Kit, Performance, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH350C, 1981-91, Kit

Part Number: TRG-350C-1-2

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Today

SHIFT KIT Valve Body Repair Kit, 6T70, 6T75, 6T80 2013-on GEN2 SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-SK6T70-G2

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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Shift Kit, Automatic Type, GM, THM 425, GMC Kit

Part Number: TRG-425-1

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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Actuator Feed Limit Valve Repair Kit, refill kit, Oversized, 4L80E , (tools not included)

Part Number: TRG-48-ACT-VL6

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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SHIFT KIT Valve Body Repair Kit, 6T30-45 GEN1 SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-SK6T40-A

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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SHIFT KIT Valve Body Repair Kit, 6T40, 6T45 GEN2 2013-17 SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-SK6T40-G2

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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