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A spool replaces the factory differential carrier and permanently locks both axle shafts together
it delivers exceptional thermal stability
and dramatically reduced binding compared to standard U-joints
250" inner diameter
75 inch steel full spool
Yukon GM 14-Bolt Ring & Pinion Gears - 10.5", 30-Spline, Thick 1991-jeep-cherokee-esi7739187 A spool replaces the factoryUpgrade your GM 14 bolt with a 10. 5" Thick Ring and Pinion Gear Set designed specifically for 4. 11 and down carrier applications. This gear set allows you to run deeper gear ratios without changing carriers, making it a smart solution for builds running larger tires or needing improved torque multiplication. Designed for GM full size truck axles, this thick gear allows deeper gear ratios to be installed on a carrier originally designed for 4. 11 and
