Yukon Standard Open Spider Gear Kit for 8.5" GM w/ 28 Spline Axles Carriers & Traction Devices - GM 8.875" Truck Rear 1963-1982 Ring Gear Bolt Size: 7/16"

Ring Gear Bolt Size: 7/16" X 20 RH

− USA Standard 4340 Chrome-Moly replacement axle kit for '77-'91 GM Dana 60 front

8" IRS 2015 & Up

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a sensor port plug in case your truck only requires one speed sensor

Yukon Standard Open Spider Gear Kit for 8.5" GM w/ 28 Spline Axles Carriers & Traction Devices - GM 8.875" Truck Rear 1963-1982 Ring Gear Bolt Size: 7/16"Carrier Rebuild Kit by Yukon Gear & Axle Description Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. Spider gear kit Fits GM 8. 5" open differential with 28 spline axles Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers. Does not fit 8. 6" carriers with casting numbers 1073 or 7875. Both 8. 5" & 8. 6" carriers were available from 1999