BUICK Transmission & Drivetrain

Ring and Pinion-GM 8.5/8.625

Part Number: MGR-GM10-373A

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Transmission Upgrade Kit, Transpak, GM, 700R4, 4L60, Each

Part Number: BMM-70235

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Differential Pinion Yoke, Mechanics 3R, 30 Spline, Steel, GM, 8.5 in., 8.6 in., Each

Part Number: YGA-41071

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit

Part Number: MGR-R12CRSK

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit

Part Number: MGR-R10RMKT

4.5 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Throwout Bearing, Hydraulic, 1.375 in. Retainer Diameter, Lever Style Clutch, universal, Each

Part Number: RAM-78125HDL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: TRG-400-3

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, Master Kit, Buick, 8.2 in., Kit

Part Number: MGR-R8-5PRMK

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Automatic Transmission Pan, Stock, Aluminum, Natural, GM, Powerglide, Each

Part Number: TCI-528300

4.46 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-373

Not Yet Reviewed

Estimated Ship Date: Today

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Automatic Transmission Controller Component, Bluetooth Adapter, for Use Adapting the TCI EZ-TCU To Work with Bluetooth, GM, TCI, Each

Part Number: TCI-302611

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: HAY-10-012

Not Yet Reviewed

Estimated Ship Date: Today

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Transmission Fluid Dipsticks, Stainless Steel, Flexible, Polished Aluminum Handle, 27-5/8 in. Length, Firewall Mount, GM, 4L60E, Each

Part Number: TRD-8146

Not Yet Reviewed

Estimated Ship Date: Today

Axle Shaft, Rear, C-Clip, 1541H Alloy, 26 Spline, 28.438 in. Length, GM 7.5/7.625 in., Chevy, Each

Part Number: YGA-21288

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Clutch Disc, Street, 200 Series, 1 1/8 in.- 10-Spline, 10.50 in. Disc, Each

Part Number: RAM-251

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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

Part Number: MGR-R12CRMK

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Differential Parts Kit; Open Differential Internal Kit; Incl. Side And Pinion Gears/Washers/Pinion Shaft And L

Part Number: MGR-GM12BI

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Estimated Ship Date: Today

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Clutch Kit, Organic, 1 1/8 in.- 26-Spline, 11 in. Disc, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: RAM-88764

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set

Part Number: RMG-GM75373TK

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Transmission Dipstick, Braided Stainless Steel, Natural, Firewall Mount, 4L60, Each

Part Number: LOK-TD34L60FM

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Differential Carrier Clutches, OE, Composite Clutch Pack, Rear, Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac, Kit

Part Number: ADO-12524505

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Estimated Ship Date: Today

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• $20 Summit Bucks

Ring and Pinion Gear, 4.56:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36218

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Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885456

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Wiring Harness, EZ-TCU Transmission Controller Main Harness, Each

Part Number: TCI-30261

Not Yet Reviewed

Estimated Ship Date: Today

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Flexplate, Chromoly, SFI 29.1, Buick 430-455, 166-Teeth, OEM Compatible TH350, TH400, 700-R4, External Balance, Each

Part Number: PQX-1845507

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Estimated Ship Date: Today