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Ratech (www.ratechmfg.com) specializes in small parts for your 7.5-, 8.8-, or 9-inch rearend rebuild or ring-and-pinion swap. We used the company’s 8.8-inch Installation Kit, complete with carrier bearings, race and shim pack, pinion bearings, pinion seal, pinion nut, marking compound, and new ring bolts. Ratech pioneered a trick new crush sleeve—dubbed “smart sleeve”—for your street application, while the drag guys will use a solid piece and shim to get the required bearing preload. If you have access to a press and can set your own gears, they also make a trick and inexpensive pinion-setting tool you should have.