1998 GMC Transmission Gaskets & Seals

Automatic Transmission Oil Pan Gasket, GM, TH700-R4, 4L60, 4L60-E, 4-Speed, 16-Bolt Holes, Each

Part Number: FEL-TOS18663

4.97 out of 5 stars ( 32 )

Estimated Ship Date: Monday 1/12/2026

• $20 Summit Bucks

Seal, Transmission Rear Seal, Steel/Rubber, GM, Buick, Cadillac, Each

Part Number: TMK-9449

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/12/2026

Seal, Torque Converter, Cadillac, Chevy, Isuzu, Saab, Each

Part Number: TMK-4950

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Transmission Rear Seals, Automatic Output Shaft Seal, Replacement, Rubber, GM, 4L60/4L65/4L70/700R4/MD8/TH350C/TH400, Each

Part Number: ADO-3764601

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Seal, Torque Converter, Acrylate, Cadillac, Chevy, Hummer, Each

Part Number: TMK-4598

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Automatic Transmission Servo Sealing Rings, Low and Reverse Band Servo Piston Seal, Chevrolet, THM-R2, TH475, TH400, MT1, MN8, M40, 4L85E, 4L80E, Each

Part Number: ADO-8623430

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Automatic Transmission Pump Gasket, OE Replacement, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, THM700/4L60/MD8, Each

Part Number: ADO-8642581

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026