Zumbrota Drivetrain

3.70 Ratio 28 Spline Limited Slip Re-Gear Kit

$1,318.89

SKU: YGK2309

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

Description

The Yukon Muscle Car Limited Slip & Re-Gear Kit is designed to significantly enhance traction and durability for Ford 9” differentials. This comprehensive kit includes a Yukon Trac Loc Limited Slip Differential (LSD) and an upgraded ring and pinion gear set, providing a substantial improvement over stock components. This kit offers the opportunity to achieve more aggressive acceleration through a re-gearing process, specifically by implementing a 3.70 ratio. The kit is built for Ford 9” differentials that feature Daytona pinion support, with a 28 spline pinion gear and a 3.062” bore housing. The included Trac Loc positraction LSD is 31 spline. This re-gear kit is compatible with a range of classic Ford vehicles, including ’65 to ’73 Mustangs, ’60 to ’70 Falcons, and ’67 to ’79 Cougars. It is also suitable for approximately 23 other models and any vehicle utilizing a Ford 9-inch differential, making it a versatile option for hot rods and custom builds.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandZumbrota Drivetrain
Part NumberYGK2309
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy