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8.8 Tech Info

Ford 8.8 Swaps in Jeeps

 

When installing an 8.8 Ford rear differential in a Jeep, it is very important that the rear driveshaft angles are correct for your application and suspension design. Ford 8.8 rear differentials were made for street applications, not for off-road use. The rear flange on the 8.8 was not made to accept excessive angle.  If the angles are not set correctly, under torque or deceleration the rear slip yoke will come into contact with the rear 8.8 flange and break the back of the slip yoke off like the picture below shows. The ford 8.8 flange does not have the same angle as the OEM pinion yoke that came on your Jeep, so you need to take extra caution when setting the angle. It is a lot easier to set the rear angle after you have installed the rear driveshaft. Depending on what application the Jeep is, the angles are set different. Example: Angles on Jeep YJ and XJ with leaf springs or SOA should be set at a different angle than a TJ.

We will be glad to help you with setting the angles so you will not have any issues with the driveshaft. If the rear of the slip yoke breaks off, then unfortunately we will not be able to warranty the driveshaft. If you let us help you with the angles, then we will warranty it.

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