Easy — 1–2 hours
Description
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
| Brand | Dana |
| Part Number | D00O 804239-2020 |
Videos
Dana Nut Install
14 Bolt Spindle Nut Torque
How to change your pinion seal without special tools
EVERY 14 BOLT AXLE NEEDS THIS - Stage 8 Locking Fasteners
Setting Pinion Bearing Preload — Yukon Gear & Axle
How to install pinion shaft yoke & oil seal to differential (Dana 25/27/41/44)
Rear Axle Bearing Replacement in 3 Mins - Dana 80 Rear End - 2007 Ford F350 6.0L Diesel DRW
Servicing your Dana 50 or Dana 60 Front Axle on your OBS Ford
Removing rear left axle locking nut.
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