1978 PONTIAC FIREBIRD Transmission & Drivetrain

Clutch Kit, Concept 10.5 Dual-Disc Clutch, 1.125 in. - 10-spline, Metallic Disc, Pressure Plate, Chevy, Small Block, Kit

Part Number: RAM-50-2120N

Not Yet Reviewed

Estimated Ship Date: Sep 9, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Clutch Kit, Concept 10.5 Dual-Disc, 1.125 in. - 10-spline, 10.500 in. Diameter Metallic Disc, for Flat 153-tooth Flywheels, AMC, Chevy, GMC, Kit

Part Number: RAM-50-2122N

Not Yet Reviewed

Estimated Ship Date: Sep 9, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Clutch Kit, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 10.4 in. Diameter Disc, GM, V6, V8, Kit

Part Number: ZZZ-MU5472-1B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Automatic Transmission, Circlematic, Forward Shift Pattern, Full Manual Valve Body, Stock Pan, Chevy, THM350, Each

Part Number: TCI-312002

Not Yet Reviewed

Estimated Ship Date: Oct 3, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

CLUTCH PRESSURE PLATE

Part Number: SXR-3082-654-319

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Special Order

CLUTCH KIT

Part Number: SXR-K1874-02

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

AT HD FLEX PLATE

Part Number: ATP-Z460

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Special Order

Axle 8.2" & 8.5" GM REAR, '68-'81 PASSSHAFT, 30-1/8", 2.780" SMALL HUB, 28spl, 1 SIDE

Part Number: SPZ-11951

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Ring and Pinion Gears, Pro Series, 3.90:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-G975390

Not Yet Reviewed

Estimated Ship Date: Sep 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Axle Shaft Retainer

Part Number: MGR-344171

Not Yet Reviewed

Estimated Ship Date: Sep 17, 2025 if ordered today

• Drop Ship
• Special Order

Mini Spool, MINI SPOOL GM 10 BOLT 8.5"

Part Number: RMG-XL-5140

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Special Order

Spring, SPRING,COMPRSN, .25D,250 LB/IN

Part Number: PWT-8011001ZAT

Not Yet Reviewed

Estimated Ship Date: Sep 19, 2025 if ordered today

• Drop Ship
• Special Order

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 2 Series, Set

Part Number: RMG-49-0009-1

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Differential Carrier Gear Kit

Part Number: RMG-XL-4048

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Axle Shaft, Direct Fit, 1541H Alloy Steel, 28-Spline, 30.125 in. Length, Chevy, Pontiac, Each

Part Number: MGR-MG27122

Not Yet Reviewed

Estimated Ship Date: Sep 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Torque Converter, Holeshot, 3,400-3,800 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20425

Not Yet Reviewed

Estimated Ship Date: Sep 11, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Gear, Ring and Pinion, 3.42:1 Ratio, GM 7.5/7.625 in., Set

Part Number: RNB-697-302

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Differential Ring And Pinion Set

Part Number: RNB-697-314

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Differential Ring and Pinion Set

Part Number: RNB-697-304

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Axle Assemblies, Ford 9 in., Satin Black, 56 in. Flange to Flange, 31-Spline Axles, 1541H Alloy, Chevy, Pontiac, Kit

Part Number: ART-11179683

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Part Number: YGA-13069

Not Yet Reviewed

Estimated Ship Date: Sep 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Ring and Pinion Gear Installation Kit, Minimum Install, 27-spline, Standard Rotation, Rear, GM 7.5 in., GM 7.625 in., Kit

Part Number: YGA-12050

Not Yet Reviewed

Estimated Ship Date: Sep 29, 2025 if ordered today

• Drop Ship
• Special Order

Wheel Bearing, C-Tek Standard, GM Metric-style, Each

Part Number: CEB-413-64000E

Not Yet Reviewed

Estimated Ship Date: Sep 24, 2025 if ordered today

• Drop Ship
• Special Order

8.5" GM PINION KIT, KOYO BRGS

Part Number: SPZ-60012

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Drop Ship
• Special Order