Drivetrain› Differentials and Rear-End Components

OX Locker

Dana 30 Selectable Locking Differential for 3.55 and Lower

$1,208.90

SKU: D30-355-30

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The OX Locker is a locking differential designed for Dana 30 axles utilizing a 3.55 or numerically lower gear ratio and 30-spline axles. This heavy-duty traction aid provides selectable locking capabilities to help navigate challenging off-road terrain, with a heavy-duty cover included.

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

BrandOX Locker
Part NumberD30-355-30
CategoryDrivetrain

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.

View Full Return Policy