BUICK Transmission & Drivetrain

Shifters, Automatic Transmission, Gated, 2-Bolt Flange, 7/8 in. Center to Center, Floor Mount, GM TH400, Neutral Safety Switch, with Linkage, Each

Part Number: LOK-GS400T

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Automatic Shifter, Cable Operated, 4 ft. Cable, Detent, 16.000 in. Bench Bend Chrome Stick, 3/8-24 in., Brushed Mushroom Knob, TH350, Each

Part Number: LOK-CO350GM

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Axle Seal, Rear Outer, Avanti, Buick, Chevy, GMC, Chrysler, Dodge, Plymouth, Ford, Lincoln, Mitsubishi, Each

Part Number: TMK-8835S

4.31 out of 5 stars ( 16 )

Estimated Ship Date: Monday 2/2/2026

Transmission Dipstick, Locking Replacement, Each

Part Number: PIO-768023

2.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

Transmission Filter, Direct Fit, Black Fiber, Gasket Included, Tail Shaft Seal Included, Buick, Chevy, Oldsmobile, Pontiac, Powerglide, Kit

Part Number: SUM-G1096SK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Automatic Shifter, GM, TH400, 12 in. Single Bend Chrome Stick, Original Brushed Mushroom Knob, Each

Part Number: LOK-CO400CM

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: RMG-GM85456

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Clutch Kit, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 10 in. Diameter Disc, GM, L6, V6, V8, Kit

Part Number: ZZZ-MU5469-1A

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/2/2026

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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 2/2/2026

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Automatic Transmission Cable Bracket, Steel, Natural, Each

Part Number: HUU-1175778

4.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

Torque Converter, GM TH400 65-86 FB HS

Part Number: CCV-TQBU3HF

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

• Core Charge $75.00
• Free Shipping

Differential Cover, Steel, Chrome, GM, 8.5 in., 10-Bolt, Kit

Part Number: MRG-9891

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

Shifter Installation Kit, Mastershift, 3-Speed, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: HUU-3670010

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

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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: Feb 23, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Transmission Filter, Hi-Flow/Race, Brass Screen, Rubber/Cork Gasket, Buick, Chevy, Oldsmobile, Pontiac, TH400, Kit

Part Number: SUM-G1091

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/2/2026

Bolts, Torque Converter, 10mm x 1.5, Steel, Natural, 0.887 in. UHL, Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Saab, Set of 3

Part Number: RNB-14099

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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

Part Number: PQX-1845507

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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 2/2/2026

Transmission Dipstick, Braided Stainless Steel, Natural, Firewall Mount, 200-4R, Each

Part Number: LOK-TD3200RFM

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Differential Carrier, Open, Loaded, GM 8.6 in. 30 Spline, Each

Part Number: YGA-20098

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Automatic Transmission Filter, Farpak Gasket, 4L60E, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Olds, Saab, Kit

Part Number: ADO-TF337

2.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

Throwout Bearing, 1 3/8 in. Shaft Diameter, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: HAY-70-201

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

Throwout Bearing, Hydraulic Release, for Oval Track, Radial Face, 1.375 in. Dia. Retainer, 1/2 in. Travel, for Diaphragm Pressure Plate, GM, Each

Part Number: RAM-78100

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

RING GEAR

Part Number: PIO-FRG-166N

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

Automatic Transmission Rebuild Kit, Pro Super, GM, TH400, Kit

Part Number: TCI-228800

4.25 out of 5 stars ( 12 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping