USA Standard Gear ZK C9.25-R Master Overhaul Kit

Differential Parts Kit

Master Overhaul Kit

Master Overhaul Kit; 9.25 in. 12 Bolt; Incl. Car Brngs/Races/Pin Brngs/Races/Pin Seal/Cmplte Shim Kit/Rg Gr Blts/Pin Nut/Crush Slve/Oil Bfles/Slngrs;

USA Standard Gear Master Overhaul Kits give you all the high-quality installation parts you need to start and finish every differential job. USA Standard Gear offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses high-quality Koyo/Timken bearings and races along with high quality seals and small parts. USA Standard Gear Master Overhaul Kits are the most comprehensive and complete kits on the market because USA Standard Gear does extensive research to ensure that every kit has everything you need for your application.

Ring & Pinion Service first opened its doors in June of 1982 as a small service shop in Randy Lyman's garage. In 1984 he moved his garage business into a commercial building and in 1986 he began parts distribution. In 1989 Randy returned to his home state of Washington and opened a small service shop in Redmond, WA. Five years later, he relocated the shop north to Everett, WA and in 1996, with a growing customer base and the vision of becoming the number one source for the nation's differential needs, Randy changed the company name to Randy's Ring & Pinion. With typical forward-thinking vision, Randy recognized this area as a future hotbed industrial district, with expansion opportunities focusing on parts manufacturing and distribution. By 2001, sales boomed such that a new location across the continent was needed, and this vision became a reality with the opening of the Tennessee warehouse. Our bi-coastal locations enable us to ship our products quickly to customers around the nation. In 2002, Randy's expanded into a new 58,000 square foot office and warehouse space in Everett, WA. In 2005, we opened a third warehouse in Fresno, CA.