Zumbrota Drivetrain

Muscle Car Re-Gear Kit 3.73 Ratio 29 Spline

$727.89

SKU: YGK2343

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

This kit is specifically made for Chrysler 8.75” differentials that feature an 89 case housing. The kit encompasses all the essential components required for a successful installation. You will receive the ring and pinion gear set itself, as well as all the necessary bearings and installation hardware. This ensures that you have everything needed to complete the re-gearing process, providing a seamless upgrade for your drivetrain. Coverage for this re-gear kit includes a range of classic muscle cars and hot rods. Specifically, it fits the 1970 to 1973 Dodge Challenger, the 1968 to 1973 Plymouth Road Runner, and the 1964 to 1973 Plymouth Barracuda. It is also compatible with 19 other models and any vehicle hot-rodded with a Chrysler 8.75” or 89 housing differential. The kit features a 12 bolt ring gear.

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

BrandZumbrota Drivetrain
Part NumberYGK2343
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.

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