1978 PONTIAC FIREBIRD Transmission & Drivetrain

High performance Yukon Ring & Pinion "thick" gear set for GM 7.5" in a 4.11 ratio

Part Number: YGA-24481

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Yukon steel spool for GM 8.5" & 8.6" with 30 spline axles

Part Number: YGA-32193

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Mini spool for GM 7.5" with 26 spline axles

Part Number: YGA-32228

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Estimated Ship Date: Sep 29, 2025 if ordered today

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WASHER, PINION THRUST

Part Number: MGR-559291

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Estimated Ship Date: Sep 17, 2025 if ordered today

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Axle Shaft Retainer

Part Number: MGR-344171

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Estimated Ship Date: Sep 17, 2025 if ordered today

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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

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Estimated Ship Date: Sep 16, 2025 if ordered today

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

Part Number: PWT-8011001ZAT

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Estimated Ship Date: Sep 19, 2025 if ordered today

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Clutch Disc, Carbon Composite, 1 1/8 in.- 10-Spline, 10.4 in. Disc, AMC, GM, Each

Part Number: CTF-LM383271

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Pressure Plate, Centerforce I, Diaphragm-Style, 10.4 in. Disc Diameter, Each

Part Number: CTF-CF361874

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Pressure Plate, LMC, Diaphragm-Style, 11 in. Disc Diameter, Each

Part Number: CTF-LM165552

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Ring and Pinion Gears, 5.38:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: SPZ-36221

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Estimated Ship Date: Sep 15, 2025 if ordered today

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Yukon 1541H alloy rear axle for 8.2" and 8.5" GM passenger

Part Number: YGA-21243

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Clutch Disc, Sprung Hub, DFX, Cerametallic, 11 in., Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Car, Truck, Each

Part Number: CTF-323384148

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Clutch Disc, DFX, Sprung Hub, Cerametallic, 10.4 in. diameter, Buick, Chevrolet, Mopar, Each

Part Number: CTF-323384161

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Clutch Kit - Stage 1 Single Sprung Organic Clutch Disc

Part Number: XCL-XKCR27001-1A

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Estimated Ship Date: Sep 19, 2025 if ordered today

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

Part Number: MGR-MG27122

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Estimated Ship Date: Sep 17, 2025 if ordered today

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

Part Number: MGR-G875342X

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Estimated Ship Date: Sep 17, 2025 if ordered today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-456

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Estimated Ship Date: Sep 17, 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: Sep 17, 2025 if ordered today

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Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit

Part Number: MGR-R10RT

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Estimated Ship Date: Sep 17, 2025 if ordered today

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

Part Number: MGR-G975390

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Estimated Ship Date: Sep 17, 2025 if ordered today

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AT HD FLEX PLATE

Part Number: ATP-Z460

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Clutch Kit, 10.500 in. Diameter, Heavy Duty, Street, Race, Buick, Chevy, Kit

Part Number: ACL-GM3-HDSS

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Clutch Disc, Street/Strip, Organic, 1.125 in.-10-Spline, 10.512 in. Disc, AMC, Buick, Chevy, Jeep, Each

Part Number: ACL-3000902

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Estimated Ship Date: Sep 10, 2025 if ordered today

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Differential Ring Gear Spacer, Ring Gear Spacer

Part Number: MGR-075050C

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Estimated Ship Date: Sep 18, 2025 if ordered today

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