1978 PONTIAC FIREBIRD Transmission & Drivetrain

Differential Carrier Bearings, Standard Replacement, 1.625 in. Bore, AMC, GM, Mopar, Jeep, International, Studebaker, Hummer, Each

Part Number: TMK-LM501349

3.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/6/2025

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

Part Number: MGR-GM10-308

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Clutch Kits, Stock Replacement, 1.125 in.- 10-spline, 10.563 in. Diameter Organic Disc, Pressure Plate, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: LUK-04-002

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/6/2025

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Transmission Filter, Buick, Chevy, Oldsmobile, Pontiac, TH350, Kit

Part Number: TCI-328500

3.81 out of 5 stars ( 21 )

Estimated Ship Date: Monday 10/6/2025

Clutch Kit, 450 Street, 10.5 in. Disc, 26 Spline, 1.125 in. Input Diameter, Diaphragm, GM, Kit

Part Number: HAY-91-1100

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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

Part Number: MGR-R10R

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/6/2025

Flexplate, Gold Series, 166-Tooth, External Engine Balance, SFI 29.1, TH350, TH400, 700R4, Pontiac, V8, Each

Part Number: PQX-1845500

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

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

Part Number: MRG-5135

2.43 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/6/2025

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

Part Number: HAY-10-012

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Clutch Kit, Street 650 Clutch Conversion Kits, Organic, Diaphragm, 1.125 in. Diameter Shaft, 26-Spline, 11 in. Diameter Disc, Dodge, Plymouth, Kit

Part Number: HAY-92-1102

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

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Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., 30-Spline Pinion, Kit

Part Number: MGR-R10REMKT

4.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/6/2025

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901671

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/6/2025

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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 10/6/2025

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Axle, Direct Fit, C-Clip, Rear, 1541H Steel, 30-Spline, GM F-Body, A-Body, 8.5 in., Each

Part Number: MSR-A103003-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

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Differential, Posi Performance, Limited Slip, 26-Spline, GM, 7.5 in., Each

Part Number: ETN-19663-010

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

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Bellhousing, Manual, Steel, Oldsmobile, Pontiac, Each

Part Number: LAK-15100

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 3, 2025 if ordered today

• Drop Ship
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• Special Order

Axle Seal, Rear Axle Shaft Size-1.399 in., Seal O.D-.2.296, Seal Width-0.460 in., Bidirectional, Each

Part Number: TMK-8660S

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Monday 10/6/2025

Pressure Plate, Diaphragm-Style, 10.5 in. Disc Diameter, Buick, Chevy/Ford, GMC/Oldsmobile, Pontiac, Each

Part Number: MCL-360703

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Throwout Bearing Conversion, Hydraulic, Hydramax, GM, Magnum/GM LS T-56/Viper T-56, Kit

Part Number: AWR-HMGM01201SR

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 10/6/2025

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Clutch Assembly, StreetPro, 12 in. Dia., 1.125 in. Dia. x 10-Spline Input Shaft, Sgl. Full Face Organic Disc, Diaph. Pressure Plate, B-O-P, Chevy, Kit

Part Number: MCL-75128

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Universal Joint, Light Duty, S44/GM 3RL, Steel, Buick, Cadillac, Chevy, Chrysler, Ford, Hummer, Isuzu, Jeep

Part Number: SDH-5-3147X

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 10/6/2025

Pressure Plate, Centerforce II, Diaphragm, 10.4 in. Disc Diameter, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: CTF-CFT361675

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Oct 23, 2025 if ordered today

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• Special Order

Differential Pinion Yoke, 1350, 30 Spline, Steel, GM 8.5 in., Each.

Part Number: YGA-41093

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Torque Converters, Remanufactured, OEM Style, 1.875 in. Slotted Hub, 3 Pad, 13.0 in. Dia., 1,200 Stall, Avanti, Checker, Excalibur, GM, Jeep, V6, Each

Part Number: CCV-TQBU3

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

• Core Charge $75.00
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Axle Shaft, OEM Replacement, 28-Spline, 30.125 in. Length, Chevy, GMC, Pontiac, 8.2 in., Rear, Each

Part Number: RMG-92-25114

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/6/2025

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