1973 PONTIAC FIREBIRD Transmission & Drivetrain

Ring and Pinion Gear, 4.30:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36217

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Ring and Pinion Gear, 2.73:1 Ratio, GM 8.5/8.6, 10 Bolt Cover, 30 Spline, 10 Ring Gear Bolts, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Set

Part Number: YGA-24490

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Axle Assemblies, Ford 9 in., Satin Black, 61.25 in. Flange to Flange, 31-Spline Axles, 1541H Alloy, Chevy, Pontiac, Kit

Part Number: ART-11179682

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Manual Transmission Bearing and Seal Overhaul Kit, Manual Transmission Bearing and Seal Overhaul Kit

Part Number: SPZ-ZMBK116HD

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pinion Yoke, Bolt-On, Steel, 3RS44 Series, 30-Spline, GM 8.5, Each

Part Number: RMG-96-2520

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Differential Crush Sleeves, Steel, Fits with Aftermarket Ring and Pinion Set Only, Buick, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Each

Part Number: MGR-9785792

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Axle Assemblies, Ford 9 in., Natural, 61.25 in. Flange to Flange, 31-Spline Axles, 1541H Alloy, Chevy, Pontiac, Kit

Part Number: ART-11179680

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Ring and Pinion Gear Installation Kit, Bearing Overhaul, 30 Spline, GM 8.5 in., Kit

Part Number: YGA-11067

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Flywheel, Aluminum, 10.5 lbs., Chevy, Each

Part Number: FIZ-198541

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Pressure Plate Bolts, 12 Point, 4135 Chromoly, Black Oxide, Chevy, Big, Small Block, Kit

Part Number: PQX-1050101

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Transmission Bearing and Seal, Saginaw-3/Saginaw-4 Transmission Bearing/Seal Kit Buick/Chevy/GMC/Oldsmobile/Pontiac Cars/Trucks/SUVs

Part Number: SPZ-76455

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Differential Shims, Pinion, Steel, Kit

Part Number: MGR-1104

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

Differential Inner Gear Kit; GM 8.5 - 30 Spline, Open Diff

Part Number: SVL-10020478

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Differential Clutch, Steel Pack, Rear, Posi, GM, 8.875 in., Set

Part Number: YGA-16064

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Estimated Ship Date: Jan 9, 2026 if ordered today

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OVERHAUL KIT

Part Number: PIO-750002

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Neutral Safety/Backup Light Switch, Column Shift Only, Each

Part Number: SMP-NS14

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Pinion Yoke, Steel, Spicer 1310 Type, 30-Spline, GM, 8.5 in., Kit

Part Number: YGA-41086

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 8, 2026 if ordered today

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Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.90 Ratio

Part Number: SVL-2020954

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 23, 2025 if ordered today

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Hydraulic Clutch Master Cylinder Kit 1970 1981 GM Camaro Firebird

Part Number: IST-HGF2MK

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Estimated Ship Date: Jan 9, 2026 if ordered today

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U-Joint Strap and Bolts, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: RNB-81000

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

PRO-X TH400 CENTER SUPPORT RING

Part Number: TCI-223603

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Ring and Pinion Gears and Installation Kit, 8.5" GM 4.11 REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI & AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12630

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Estimated Ship Date: Jan 8, 2026 if ordered today

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CLUTCH PEDAL PUSHROD BUSHING

Part Number: OER-406172

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Axle Shaft, 28-Spline, 30.125 in. Length, Chevy, Each

Part Number: YGA-21242

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Wheel Seal, OE style replacement quality wheel seal.

Part Number: NTN-NS8660S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today