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The Yukon mini spool for GM 8.5-inch with 30-spline axles installs into a standard open carrier, replacing the spider gears to supply 100% traction to both wheels at all times. It’s positioned as a low-cost traction upgrade for off-road or dedicated-use vehicles, with Yukon recommending full spools for extreme tire sizes or high-horsepower setups.
Yukon Gear Mini Spool For GM 8.5in w/ 30 Spline Axles
