1979 GMC K2500 Transmission & Drivetrain

Yukon front 4340 Chromoly axle kit for '69-'80 GM truck and Blazer, Dana 44 with 19/30 splines

Part Number: YGA-21413

4.6 out of 5 stars ( 5 )

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Differential, Auburn, Locker, Select-A-Loc, 35-Spline, Dana 60, 10-Bolt, Each

Part Number: AUB-545022

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Clutch Kit, Street 650 Clutch Conversion, Performance, Single Disc, 1.125 in. - 10-spline, 11.000 in. Sintered Metallic Disc Diameter, Chevy, Jeep

Part Number: HAY-92-1004

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Estimated Ship Date: Feb 11, 2026 if ordered today

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Clutch Kit, Street 650 Clutch Conversion, Performance, Single Disc, 1.125 in. - 26-spline, 11.000 in. Sintered Metallic Disc Diameter, Chevy, Pontiac

Part Number: HAY-92-1005

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Estimated Ship Date: Feb 11, 2026 if ordered today

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Clutch and Flywheel Kit, SST, 1 1/8 in. Diameter Shaft, 26-Spline, 10.4 in. Diameter Disc, Chevy, Kit

Part Number: CTF-412614820

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Differential, Auburn, Locker, Select-A-Loc, 35-Spline, Dana 60, 10-Bolt, Each

Part Number: AUB-545023

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Clutch Kit, Force 9.5 Dual Disc, 1.125 in. - 26-spline, Organic Disc, Pressure Plate, Flywheel, Chevy, Small Block, Kit

Part Number: RAM-75-2125S

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Estimated Ship Date: Feb 6, 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: Feb 11, 2026 if ordered today

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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: Feb 23, 2026 if ordered today

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Torque Converters, Twister Full Race, 3,600-4,200 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevrolet THM400, Buick, Chevy, Jeep, Each

Part Number: HAY-97-1D36F

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Estimated Ship Date: Feb 11, 2026 if ordered today

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Hydraulic Throwout Bearing Conversion Kits, Hydramax Hydraulic Clutch Release Systems, Blue Aluminum Slave Cylinder, Reservoir, Chevrolet, GMC, Kit

Part Number: AWR-HMGM40006

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Torque Converters, Twister Full Race, 2,800-3,200 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevrolet THM400, Buick, Chevy, Jeep, Each

Part Number: HAY-97-1D28F

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 11, 2026 if ordered today

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Differential Carriers, Grip Pro Traction System, 30 Spline, 10.5 in. GM, Each

Part Number: PWT-GT231430

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Estimated Ship Date: Mar 11, 2026 if ordered today

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Torque Converters, Twister Full Race, 4,200-4,500 rpm Stall Speed Range, 30-spline, 9.60 in. Diameter, 10.750 in. Bolt Circle, THM350, Chevy, Each

Part Number: HAY-97-1B42F

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Estimated Ship Date: Feb 11, 2026 if ordered today

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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

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Estimated Ship Date: Feb 6, 2026 if ordered today

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Torque Converters, Twister Full Race, 3,200-3,600 rpm Stall Speed Range, 30-spline, 9.600 in. Diameter, Chevrolet THM400, Buick, Chevy, Jeep, Each

Part Number: HAY-97-1D32F

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Estimated Ship Date: Feb 11, 2026 if ordered today

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Differential, Eaton Detroit Locker, 28-Spline, GM, 8.5 in., 3-Series, Each

Part Number: ETN-187C149A

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Grizzly Locker, Dana 44, 30 Spline, 3.73 and Down, Each

Part Number: YGA-28021

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 20, 2026 if ordered today

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Clutch Kit, Force 10.5 Twin-Plate, Organic Disc, 1 1/8 in. Diameter Shaft, 10-Spline, Chevy, Kit

Part Number: RAM-80-2120

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This is a complete package that includes front & rear ring & pinion sets along with the most complete master o

Part Number: SPZ-40019

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Differential Carrier, Zip Locker, Air Locker Style, 30-spline, Dana 44, Each

Part Number: YGA-34018

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Zip Locker, Air Locker, Dana 44, 30 Spline, 3.92 Up Ratio, Each

Part Number: YGA-34020

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Estimated Ship Date: Feb 23, 2026 if ordered today

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This is a complete package that includes front & rear ring & pinion sets along with the most complete master o

Part Number: SPZ-40017

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Differential Carrier, Grip Lok, Mechanical Locker, 30 Spline, Dana 44, Rear, Each

Part Number: PWT-LK444430

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Estimated Ship Date: Mar 11, 2026 if ordered today

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This is a complete package that includes front & rear ring & pinion sets along with the most complete master o

Part Number: SPZ-40018

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Estimated Ship Date: Feb 9, 2026 if ordered today

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