1979 GMC K1500 Transmission & Drivetrain

Flywheel, Replacement, 168-tooth, 6-bolt, Cast Iron, 14.150 in. Diameter, Chevrolet, Each

Part Number: SXR-NFW1007

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Differential Cover Gasket, Performance, Composite, Dana 44, Each

Part Number: SDH-34685

5.0 out of 5 stars ( 2 )

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Clutch Fork, Steel, Black, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: ATP-ZA100

4.44 out of 5 stars ( 9 )

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Oil Seal;

Part Number: NTL-8835S

5.0 out of 5 stars ( 3 )

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Gear, Ring and Pinion, EXCel, 4.10:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT410

5.0 out of 5 stars ( 1 )

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Cross Pin, GM, 12-Bolt, 8.875 in., Each

Part Number: MGR-3931175

5.0 out of 5 stars ( 2 )

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12P & 12T 1330 cast yoke.

Part Number: YGA-41152

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Estimated Ship Date: Mar 27, 2026 if ordered today

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Ring and Pinion Installation Kit, Dana 44, 30 Spline Axle, Kit

Part Number: RAT-322K

4.0 out of 5 stars ( 7 )

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Replcement Springs, Powertrax No-Slip, Kit

Part Number: PWT-8001001KAV

4.93 out of 5 stars ( 15 )

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Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-78-1028-1

4.33 out of 5 stars ( 6 )

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Yukon Master Overhaul kit for GM 8.5" front differential with aftermarket positraction

Part Number: YGA-14089

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Yukon hardcore drive flange kit for Dana 44, 19 spline outer stubs. Non-engraved caps..

Part Number: YGA-29079

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Torque Converters, Twister Full Race, 4,200-4,500 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevrolet THM400, Buick, Chevy, Jeep, Each

Part Number: HAY-97-1D42F

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Estimated Ship Date: Mar 17, 2026 if ordered today

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Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: SPZ-39026

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.875 in., 12-Bolt, Set

Part Number: MGR-GM12-308

3.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt Truck, 3 Series, Set

Part Number: RMG-4900721

3.67 out of 5 stars ( 3 )

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Axle Shaft, OEM Replacement, Front Inner and Outer, Passenger Side, 1541H Manganese, 28/19-spline, 29.090 in. Length, GMC, Kit

Part Number: MGR-GM10FAXR

4.0 out of 5 stars ( 1 )

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Yukon cast yoke for GM 12P and 12T with a 1350 U/Joint size

Part Number: YGA-41068

5.0 out of 5 stars ( 1 )

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Pinion Nut Washer, GM, Each

Part Number: YGA-33167

5.0 out of 5 stars ( 2 )

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Transmission Bracket, Steel, Natural, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: BMM-30499

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

Spider Gears, Side Gears, Cross Shaft Pin, Yukon Dura Grip Carrier Style, Rear, GM 8.875 in., 30 Spline, Kit

Part Number: YGA-16039

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Flywheel Fasteners, Hex, 7/16-20 in. Thread, Steel, Black, Buick, Cadillac, Chevy, Ford, GMC, Jeep, Mercury, Oldsmobile, Pontiac, Set of 10

Part Number: RNB-678-154

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Axle Shaft, Direct Fit, 4340 Chromoly, 19-Spline, 9.940 in. Length, Chevy, GMC, Jeep, Each

Part Number: MGR-MG20127B

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Yukon front 4340 Chromoly axle kit for '69-'80 GM truck and Blazer

Part Number: YGA-21414

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Tapered Bearing, Roller, Each

Part Number: TMK-31594

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow