1978 PONTIAC FIREBIRD Transmission & Drivetrain

8.5" GM REAR w/Aftermarket_AG-PRO,_YDG,_XHD-Std,_EATorDET BRG & SEAL KIT, KOYO BRGS

Part Number: SPZ-58050

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Estimated Ship Date: Oct 31, 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: Nov 7, 2025 if ordered today

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Ring and Pinion Gears and Installation Kit, 8.5" GM 3.90 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12623

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Combo, ProFit, Close Ratio, T-56 Magnum, 6-Speed, 1975-81 GM F-Body, 2.66:1 First Gear, 0.63:1 Sixth, Kit

Part Number: AWR-COGM-F3G

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Estimated Ship Date: Dec 12, 2025 if ordered today

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Combo, ProFit, Wide Ratio, T-56 Magnum, 6-Speed, 1975-81 GM F-Body, 2.97:1 First Gear, 0.50:1 Sixth, Kit

Part Number: AWR-COGM-F3J

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Estimated Ship Date: Dec 12, 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

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 5, 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: Nov 5, 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

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 5, 2025 if ordered today

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Pressure Plate, DFX Series, Performance, Diaphragm, 10.400 in. Disc Diameter, Each

Part Number: CTF-311361739

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Estimated Ship Date: Nov 5, 2025 if ordered today

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Yukon Pinion install kit for '81 and older GM 7.5" differential

Part Number: YGA-13063

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Pressure Plate, DFX Series, Competition Replacement, Easy Pedal Effort

Part Number: CTF-311165552

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 5, 2025 if ordered today

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AT HD FLEX PLATE

Part Number: ATP-Z460

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Estimated Ship Date: Oct 30, 2025 if ordered today

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Ring and Pinion Kit

Part Number: RMG-XL-1016-1

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Estimated Ship Date: Nov 4, 2025 if ordered today

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MASTER KIT (5 RINGS)

Part Number: PIO-752004

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Estimated Ship Date: Nov 3, 2025 if ordered today

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BANNER KIT

Part Number: PIO-751003

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Crosspin, Replacement, Steel, Spartan, GM 8.5 in., Each

Part Number: SPZ-17024

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Estimated Ship Date: Oct 31, 2025 if ordered today

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Cross Shaft, Differential, Steel, GM 8.5 in., with Mini-Spool, Each

Part Number: YGA-32238

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Yukon Ring & Pinion sets

Part Number: YGA-24671

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Estimated Ship Date: Nov 17, 2025 if ordered today

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

Part Number: BMM-20425

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Clutch Kit, Street 650 Clutch Conversion, Performance, Single Disc, 1.125 in. - 10-spline, 10.500 in. Sintered Metallic Disc Diameter, Chevy, Jeep

Part Number: HAY-92-1002

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Estimated Ship Date: Nov 4, 2025 if ordered today

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Shifter, White Lightning, Short Throw, Billet Aluminum, Magnum T-56, Kit

Part Number: AWR-SHWL20100SR4

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Estimated Ship Date: Dec 15, 2025 if ordered today

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7.5 GM STD S/G T/W

Part Number: YGA-33389

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Gear, Ring and Pinion, 2.73:1, GM, 8.5 in., 8.6 in., Set

Part Number: SPZ-36346

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Estimated Ship Date: Oct 31, 2025 if ordered today

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Differential Carrier, Spartan Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

Part Number: SPZ-17041

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Estimated Ship Date: Oct 31, 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-30042

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Estimated Ship Date: Jan 12, 2026 if ordered today

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