BUICK RIVIERA Transmission & Drivetrain

Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-78-1028-1

4.33 out of 5 stars ( 6 )

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

Direct Springs for TH400 High Gear(16)

Part Number: TCI-221600

3.5 out of 5 stars ( 2 )

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

Wheel Bearing, Tapered, Each

Part Number: NTL-A5

Not Yet Reviewed

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

Spider Gears, Open, Front or Rear, Internal Kit, Side Gears, Cross Pin and Bolt, GM, 8.5 in., 28 Spline, Kit

Part Number: YGA-16054

4.0 out of 5 stars ( 4 )

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

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Torque Converters, Twister Full Race, 4,200-4,500 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevrolet THM400, Buick, Chevy, Jeep, Each

Part Number: HAY-97-1D42F

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Clutch Fork Return Spring, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: GMK-4033-951-712

5.0 out of 5 stars ( 2 )

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

Pinion Nut Washer, GM, Each

Part Number: YGA-33167

5.0 out of 5 stars ( 2 )

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

Wheel Hub Dust Cap, Steel, Zinc, 2.094 in. Diameter, Buick, Cadillac, Chevy, GMC, Isuzu, Oldsmobile, Pontiac

Part Number: RNB-618-102

4.0 out of 5 stars ( 5 )

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

Seal Checker,GM 67-05

Part Number: FWB-SS3045

Not Yet Reviewed

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

Differential, Lock-Right, Locker, 26-Spline, GM, 7.5 in., Each

Part Number: PWT-1930-LR

4.75 out of 5 stars ( 8 )

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

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Axle Shaft, New CV Axle, Steel, Buick, Cadillac, Chevy, Olds, Pontiac, Saturn, Front Passenger Side, Each

Part Number: GNA-NCV10232

1.0 out of 5 stars ( 1 )

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

U-Joint, Spicer 1310, Steel, Each

Part Number: YGA-42003

3.67 out of 5 stars ( 6 )

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

Transmission Control Solenoid, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: SMP-TCS39

Not Yet Reviewed

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

Switch - Neutral/Backup

Part Number: SMP-NS15

5.0 out of 5 stars ( 3 )

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

Differential, Eaton Detroit Locker, 30-Spline, GM, 8.5 in., Each

Part Number: ETN-187C148A

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 11, 2026 if ordered today

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Clutch Kit, Street 650 Clutch Conversion, Performance, Single Disc, 1.125 in. - 10-spline, 11.000 in. Sintered Metallic Disc Diameter, Chevy, Jeep

Part Number: HAY-92-1004

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Ring and Pinion Gears, GM 8.5/8.6 in., 4.88:1 Ratio, 30-spline, Standard, Must Use 2.73:1 or Numerically Higher Ratio Carrier, GM 8.5/8.6 in., Set

Part Number: SVL-2023704

5.0 out of 5 stars ( 1 )

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

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Transmission Dipstick, Braided Stainless Steel, Black, Buick, Chevy, Oldsmobile, Pontiac, TH400, Each

Part Number: LOK-XTD-3400TM

3.0 out of 5 stars ( 1 )

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

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Pinion Nut, Steel, Each

Part Number: MGR-1260823

4.0 out of 5 stars ( 5 )

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

Torque Converters, Twister 3/4 Race, 1.703 in. Crank Pilot Diameter, 30-spline, 9.600 in. Diameter, 2,400 rpm Advertised Flash Stall, TH400, Each

Part Number: HAY-97-1D24Q

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Cross Shaft, Differential, Steel, GM, 10-Bolt, 7.5 in., with Mini Spool, Each

Part Number: RMG-CSPGM75

4.0 out of 5 stars ( 4 )

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

Automatic Transmission Kickdown Cable, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: PIO-CA-1980

Not Yet Reviewed

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

Differential Crush Sleeve; Fits GM 8.5 in.

Part Number: RMG-19-0004-1

5.0 out of 5 stars ( 1 )

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

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Polished Aluminum Fittings, GM, TH350, Kit

Part Number: LOK-KDP-2350HT

5.0 out of 5 stars ( 2 )

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

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

Part Number: BMM-20413

3.67 out of 5 stars ( 6 )

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

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