Zumbrota Drivetrain

3.55 Ratio Ring & Pinion Gear Set

$358.89

SKU: ZG C8.89-355

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

Description

The USA Standard Ring & Pinion gear set provides a 3.55 ratio upgrade for Chrysler 8.75" "89" case housings. This set is engineered with an 8.75-inch ring gear diameter and a 29-spline pinion to ensure reliable power transfer. The set includes 12 ring gear bolts for secure mounting. Manufactured by USA Standard Gear, this component is built to specific drivetrain standards. The product details confirm its compatibility with Chrysler 8.75" "89" case differentials. Key specifications include the 8.75" ring gear diameter, 29 spline pinion count, 12 ring gear bolts, and the 3.55 ratio. This gear set is identified by the ZG C8.89-355 model number and proxy number 36014. The shipping weight for this item is 15.0300 LB. Please note that this item is currently on backorder and will ship upon availability. Zumbrota Drivetrain offers options like same-day dispatch, free shipping over $199, and expedited shipping at checkout.

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 NumberZG C8.89-355
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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