BUICK GRAN SPORT Transmission & Drivetrain

Gear, Ring and Pinion, 3.55:1 Ratio, GM, 12-Bolt Car, 3 Series, Set

Part Number: RMG-4900951

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.88:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0064-1

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Clutch Kit, Street Level, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 11 in. Diameter Disc, Kit

Part Number: MCL-75024

3.71 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, GM, TH400, Kit

Part Number: LOK-KD-2400U

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Clutch Kit, Organic, 1 1/8 in.- 10-Spline, 10.4 in. Disc, Buick, Chevy, GMC, Pontiac, L6, V6, V8, Kit

Part Number: RAM-88760

4.92 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Clutch Kit, Organic, 1 1/8 in.- 10-Spline, 10.4 in. Disc, Buick, Chevy, GMC, Oldsmobile, Pontiac, L6, V6, V8

Part Number: ZZZ-MU1675-1

4.22 out of 5 stars ( 18 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.2 in., Buick, Pontiac, Set

Part Number: MGR-BP882373

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt Car, Set

Part Number: RMG-4900961

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Manual Transmission Bellhousing, 621, New, Aluminum, Natural, Blue Bird, Buick, Cadillac, Checker, Chevy, GMC, Jeep, Olds, Pontiac, Workhorse, Each

Part Number: IST-BHG-00104A

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, 12-bolt, 30-spline, Rear, GM 8.875 in. Passenger Car, Kit

Part Number: MGR-R12CRMKT

3.67 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0072-1

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set

Part Number: RMG-12BC373T

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Clutch Kit, Powergrip HD, Metallic, 1 1/8 in.- 10-Spline, 11 in. Disc, GM, L6, V8, Kit

Part Number: RAM-98762HD

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Hydraulic Throwout Bearing Conversion, Hydramax Clutch Release System, with Remote Reservoir, Braided SS/PTFE Hose, Aluminum, Chevrolet, BOP, Kit

Part Number: AWR-HMGM40020

4.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt Passenger Car, Set

Part Number: MGR-G888373

Not Yet Reviewed

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Gear, Ring and Pinion, 5.14:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0027-1

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Mar 24, 2026 if ordered today

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Clutch Kit, Street 650 Clutch Conversion Kits, Organic, Diaphragm, 1.125 in. Diameter Shaft, 26-Spline, 10.500 in. Diameter Disc, Dodge, Plymouth, Kit

Part Number: HAY-92-1100

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Clutch Kits, Street 450 Clutch Conversion Kits, 1.125 in. - 10-spline, Single Organic Disc, 10.500 in. Diameter, Buick, Chevy, Olds, Pontiac, Kit

Part Number: HAY-91-1002

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Automatic Transmission Pan, Stock, Steel, Chrome, GM TH400, Each

Part Number: TCI-228011

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Today

Torque Converter, Nitrous Holeshot, 2,800-3,200 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20481

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Clutch Disc, Street, Organic/Ceramic, 1.125 in.- 26-Spline, 11.0 in. Disc, GM, V8, Each

Part Number: MCL-260571

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Automatic Transmission Pan, Stock, Aluminum, Polished, GM, TH400, Each

Part Number: TCI-228010

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.33:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0074-1

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Transmission Pan, Deep, Steel, EDP Coated Black, GM TH400, Each

Part Number: MRG-9786BMRG

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Ring and Pinion Gears, 4.11:1 Ratio, Standard Rotation, 8.20 in. Diameter, GM, BOP, Set

Part Number: MGR-BP882411

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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