CHEVROLET R20 SUBURBAN Automatic Transmission Shift Kits

Shift Kit, Performance, Gaskets, Pro-Race, Heavy Duty, Super Show Off, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, TH400, Kit

Part Number: TRG-400-PRO

4.95 out of 5 stars ( 21 )

Estimated Ship Date: Today

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Shift Kit, Performance, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH400, 1965-95, Kit

Part Number: TRG-400-1-2

4.76 out of 5 stars ( 21 )

Estimated Ship Date: Today

Shift Kit, Automatic, Full Manual, GM, 700R4, Towing, Competition, Pro Sreet, Kit

Part Number: TRG-700-2-3

4.32 out of 5 stars ( 25 )

Estimated Ship Date: Today

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

Part Number: TRG-SK700

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

Shift Kit, Shift Improvement, with Auxiliary Valve Body, GM, 700R4, 4L60, Kit

Part Number: TRG-SK700-JR

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Shift Kit, Performance, Full Manual or Automatic Capability, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH400

Part Number: TRG-400-3

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

Automatic Shift Kit, THM400, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Car, Kit

Part Number: TRG-SK400

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Transmission Upgrade Kit, Trans-Scat, Buick, Chevy, Oldsmobile, Pontiac, TH400, Each

Part Number: TCI-400000

Not Yet Reviewed

Estimated Ship Date: Dec 28, 2026 if ordered today

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Transmission Upgrade Kit, Valve Body Performance Improver, GM, TH400, Kit

Part Number: TCI-226000

Not Yet Reviewed

Estimated Ship Date: Dec 28, 2026 if ordered today

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SHIFT KIT® Valve Body Repair Kit

Part Number: TRG-180-C

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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