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9" Ford Iron Case 3.812" Bore Raised Pinion

9" Ford Iron Case 3.812" Bore Raised Pinion

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3,812″ HP10 High Pinion Case

Gearworks HD HP10 3.812″ High Pinion is designed for the highest demand off road applications needing a high pinion front or rear. Fitting into standard 9″ housings and utilizing 10″ gears this can be found in a lot of the fastest Ultra4 cars around the world. The housing has an extra thick bottom with a smoother face to help slide across rocks and to take a beating. The standard Dual load bolts keeps the ring gear from deflection. The 5 pinion support bolts are 7/16″ to keep your pinion support tight in the heat of battle. It uses a taller than stock 9″ tail bearing to add load capacity to this already overloaded spot and is retained by a bolt in retainer plate. The massive main caps are Billet Chromoly with high quality ARP 9/16″ main studs retaining them. The housing comes already cleared and drilled/tapped for ARB air lockers. When you want the strongest high pinion housing, this is the one.

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