Drivetrain› Differentials and Rear-End Components

USA Standard Gear

Master Overhaul Kit

$495.89

SKU: ZK C8.75-B

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The USA Standard ZK C8.75-B is a master overhaul kit for Chrysler 8.75-inch #42 housings. This kit includes Koyo bearings and races, carrier bearings and races, pinion bearings and races, a pinion seal, a complete shim kit, ring gear bolts, and a pinion nut. It also comes with a crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush, and a gasket.
Show original supplier description
The USA Standard ZK C8.75-B Master Overhaul Kit is designed to provide all necessary components for a comprehensive differential overhaul. The comprehensive contents of this kit include carrier bearings and races, pinion bearings and races, a pinion seal, a complete shim kit, ring gear bolts, and a pinion nut. Additionally, it features a crush sleeve (where applicable), oil baffles and slingers (where applicable), threading locking compound for secure assembly, and marking compound with a brush for precise gear pattern analysis. A gasket is also included to ensure a proper seal. This master overhaul kit is specifically engineered for Chrysler 8.75-inch #42 differential housings. It is compatible with a wide range of Chrysler, Dodge, and Plymouth vehicles from the 1960s and 1970s, including models like the Imperial, New Yorker, Challenger, Charger, Coronet, Dart, Barracuda, Fury, and Road Runner, among others.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandUSA Standard Gear
Part NumberZK C8.75-B
CategoryDrivetrain
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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