1978 PONTIAC FIREBIRD Transmission & Drivetrain

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

Part Number: SPZ-58011

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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WASHER PIN 8.5 GM 10 BOLT

Part Number: MGR-3984818

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: MGR-R10RSK

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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7.5" & 7.625" GM EATON POSI SHIM KIT

Part Number: YGA-16047

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 5, 2025 if ordered today

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Clutch Kit, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 10.4 in. Diameter Disc, GM, Circle Track, Kit

Part Number: ZZZ-30043

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 2, 2026 if ordered today

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Automatic Transmission Control Solenoids, Replacement, Avanti, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: ATP-SE-1

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Wheel Seal, Front, 2.405 in. OD, 1.734 in. ID, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: LEB-OILSEAL-1

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Estimated Ship Date: Nov 14, 2025 if ordered today

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Axle Shaft Retainer

Part Number: MGR-3833322

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Thrust Washer, Open Differential, GM 7.5 in./7.6 in., Each

Part Number: YGA-33390

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Differential Spool Bearing Kit; Fits GM 8.5 in. 10 Bolt; Incl. Bearings/Bearing Races

Part Number: RMG-29-0013-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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RING GEAR BOLT EACH

Part Number: MGR-PB179-2-L

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Estimated Ship Date: Oct 27, 2025 if ordered today

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TH350 DIR/FOR STEEL .068 (11)

Part Number: TCI-324002

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Estimated Ship Date: Nov 13, 2025 if ordered today

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Lockwasher, LOCKWASHER 7/16" C9.25/F7.5

Part Number: MGR-RGB4-LW

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Differential Ring Gear Spacer, Ring Gear Spacer

Part Number: MGR-085050C

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Estimated Ship Date: Oct 27, 2025 if ordered today

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TH350 DIR/FOR KOLENE .068 (1)

Part Number: TCI-324003

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Estimated Ship Date: Today

Transmission Pan, Stock, Steel, EDP Coated Black, GM TH350, Each

Part Number: MRG-9765BMRG

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Thrust Washer, Open Differential, 0.795 in. Inside Diameter, GM 8.5 in./8.6 in., Each

Part Number: YGA-33385

Not Yet Reviewed

Estimated Ship Date: Today

Axle Shafts, Direct Fit, Rear, 1541H Manganese, Chevy, GMC, Pontiac, 28-Spline, 30.12 Length, Kit

Part Number: MGR-MG22101

4.9 out of 5 stars ( 20 )

Estimated Ship Date: Today

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Bolts, Pressure Plate, Steel, Black Oxide, 3/8-16 in. Chevy, Mopar, 1955-1985, V8, Set of 6

Part Number: MCL-1500

4.25 out of 5 stars ( 16 )

Estimated Ship Date: Today

Clutch Kit, Super StreetPro, Organic, Ceramic, 1 1/8 in. Diameter Shaft, 10-Spline, 11 in. Diameter Disc, Kit

Part Number: MCL-75224

4.65 out of 5 stars ( 55 )

Estimated Ship Date: Today

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Flexplate Dust Shield, Steel, Chrome, Chevy, 700R4, Each

Part Number: MRG-5135

2.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

Clutch Kit, Super StreetPro, Organic/Ceramic, 1 1/8 in. Diameter Shaft, 10-Spline, 10.5 in. Diameter Disc, Kit

Part Number: MCL-75217

4.46 out of 5 stars ( 28 )

Estimated Ship Date: Today

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Automatic Transmission Pan, Deep, Aluminum, Natural, GM, TH350, Each

Part Number: TCI-328000

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Today

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COUPLER

Part Number: PWT-1932504CCN

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Estimated Ship Date: Today

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Automatic Transmission Pan, Stock, Steel, Chrome, GM, TH350, Each

Part Number: TCI-328011

4.0 out of 5 stars ( 7 )

Estimated Ship Date: Today