Zumbrota Drivetrain

9" Differential Gear Set, 6.20 Ratio, 28 Spline

$389.89

SKU: ZG F9-620

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 is engineered to exceed OEM specifications for Ford 9" differentials. Each set is subjected to thorough in-house quality evaluations, confirming that products pass all dimensional, material, and fitment testing before being offered. This specific gear set provides a 6.20 ratio, ideal for applications requiring higher torque multiplication. Key specifications include a 9.00" ring gear diameter, a 28-spline pinion, and provisions for 10 ring gear bolts. The USA Standard Gear brand is known for its commitment to quality and performance in drivetrain components. These gear sets are designed for direct fitment into Ford 9" rear axle assemblies. Customers seeking to optimize their vehicle's performance through gear ratio changes will find this set to be a robust solution. For any inquiries regarding fitment or build project selection, Zumbrota Drivetrain offers expert technical support via phone and live chat.

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 F9-620
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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