Drivetrain› Differentials and Rear-End Components

Yukon Gear & Axle

Yukon helical postraction for GM 8.5in and 8.6in 2.73 and up 30 spline

$633.16

SKU: Y001 YP PGM8.5-HELIC-30

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Yukon Helical Gear Limited-Slip Differential (YP PGM8.5-HELIC-30) is designed for GM 8.5" and 8.6" axles with 30 splines and a 2.73 and up gear ratio, providing enhanced traction and stability through a worm and spur gear design that requires no maintenance.

Fitment

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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

BrandYukon Gear & Axle
Part NumberY001 YP PGM8.5-HELIC-30

Videos

LSD diff locker Install 8.5"/8.6" GM Axle, Yukon Gear YDGGM8.5-3-30-1

LSD diff locker Install 8.5"/8.6" GM Axle, Yukon Gear YDGGM8.5-3-30-1
Which Traction Device is Right for You?

Which Traction Device is Right for You?
Benefits of a Positraction

Benefits of a Positraction

Buy with Confidence

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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