BUICK RIVIERA Transmission & Drivetrain

Transmission Fluid Dipsticks, Chrome Plated, Bellhousing Mount, Case Entry, Chrome Tube and Handle, 25.00 in. Length, Chevy, TH400, Each

Part Number: MRG-9765-A

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set

Part Number: RMG-GM75456

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Spool, Mini, Steel, 30-spline, 10-bolt, GM 8.5 in., Each

Part Number: YGA-32233

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Sprag, Intermediate, Steel, 34-Element, GM, TH400, Each

Part Number: TCI-227900

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901691

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Transmission Dipstick, Braided Stainless Steel, Natural, TH350, Each

Part Number: MRG-9703G

3.63 out of 5 stars ( 19 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Transmission Dipstick, Braided Stainless Steel, Natural, Transmission Mount, TH400, Each

Part Number: LOK-TD-3400TM

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Wheel Bearing, Rear, Outer, Buick, Cadillac, Chevy, GMC, Oldsmobile, Dodge, Plymouth, Ford, Lincoln, Mazda Axle saver repair bearing

Part Number: NTL-RP5707

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Flexplate, Performance, Neutral Balance,153 Tooth, Chevy, V8, Each

Part Number: HAY-10-012

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.5 in./7.625 in., 3 Series, Set

Part Number: MGR-G875410

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Yokes, GM 3RL/S44/Mechanics 3/American Axle 1344, 30-spline Inner, Cast Steel, for GM 8.5 in. or GM 9.5 in. Axle As the Pinion Yoke, Strap Style, Each

Part Number: MGR-MG3R-8500

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Universal Joint, 1344 Style, Greasable, Steel, Each

Part Number: SUM-732001

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Clutch Kit, Organic, 1.125 in.- 10-Spline, 10.5 in. Disc, GM, V6, V8, Kit

Part Number: RAM-88760HDX

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Gear, Ring and Pinion, EXCel, 3.08:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: RMG-GM85308

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Axle Housing Seals, Big Ford, Oldsmobile, Pontiac, Sealed Ball Bearing, Inner Housing Seal, Each

Part Number: MSR-7S151

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Axle Bearing, Inner, Each

Part Number: TMK-TRP1559TV

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Differential, Eaton Detroit Locker, 28-Spline, GM, 8.5 in., 3-Series, Each

Part Number: ETN-187C149A

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Seal, Automatic Transmission Shift Shaft, Steel/Rubber, GM, Each

Part Number: NTL-8792S

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Clutch Kit, Concept 10.5 Dual-Disc Clutch, 1.125 in. - 10-spline, Organic Disc, Pressure Plate, Chevy, Small Block, Kit

Part Number: RAM-50-2120

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Transmission Modulator Valve, GM, TH300, TH350, TH400, Each

Part Number: ATP-JX66

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Differential Shims, Carrier, Steel, Kit

Part Number: MGR-SS10

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Ring and Pinion Gears, 3.08:1 Ratio, 30-spline, Standard Rotation, GM 8.5/8.6 in., Set

Part Number: YGA-24492

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Torque Converter, Nitrous Holeshot, 3,500-3,800 rpm Stall Range, 30-spline, THM350/THM400, Each

Part Number: BMM-20485

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each

Part Number: RMG-78-7526-1

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 7.5 in./7.625 in., 2 Series, Set

Part Number: MGR-G875308

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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