Rear yoke u-bolt conversion - Jeep Cherokee Forum
Jeep Cherokee Forum

Rear yoke u-bolt conversion

Closed Thread
Thread Tools Search this Thread
Old 11-04-2009, 10:13 AM   #1
CF Veteran
Thread Starter
winston427's Avatar
Join Date: Feb 2009
Posts: 5,893

View winston427's Photo Album My Photos
Model: Cherokee
Default Rear yoke u-bolt conversion

This an easy and inexpensive upgrade to increase the strength of your driveline. If you have ever broken a rear u-joint on the trail and had the retaining strap bolts break off in the yoke, then you already know what a pain it is to repair in the field. This will make the driveline stronger and will make trail repair much easier in the event of a u-joint failure.

Parts needed: 2 u-joint retainer kits, part # 81004. These can be found at almost every auto parts store for around $5 each. You will also need a good quality 5/16 drill bit to drill out the yoke. And yes the package says Ford on it.

Name:  U-bolt conversion 005.jpg
Views: 1385
Size:  93.1 KB

Tools needed: Electric or cordless drill with a good bit, 8mm wrench to remove the existing u-strap bolts, and a 1/2" wrench to install the new retainers.

To start with the basics of why this improves to driveline strength. The factory method of holding the u-joint into the yoke is 2 straps secured by 4 small weak bolts. With the increased driveline angles caused by lifting a vehicle, it becomes easier to put the u-joint in a bind when accelerating while flexing the suspension. When the u-joint binds it has to find some way to relaese the pressure. That usually means the bolts on the retaining strap will break and the driveshaft seperates from the yoke.

Factory setup
Name:  U-bolt conversion 009.jpg
Views: 1322
Size:  93.6 KB

After removing the 4 existing u-strap bolts and moving the driveshaft out of the way. Drill out the four bolt holes in the yoke with the 5/16 bit.
Name:  U-bolt conversion 011.jpg
Views: 1362
Size:  95.8 KB

Position the driveshaft back in the yoke, this would also be a good time to replace that rear yoke if needed. Install the u-bolts, lock washers, and retaining nuts. Tighten it all up with the 1/2" wrench and you are ready to go.

Name:  U-bolt conversion 014.jpg
Views: 1926
Size:  93.7 KB

As an additional tip, keep a old blown speaker laying around the garage. It makes the clean up of all those metal shavings a quick and easy process.

Name:  misc 008.jpg
Views: 1281
Size:  96.4 KB

You can also purchase a couple of extra u-bolts kits to keep in your trail kit. If you do break a u-joint and damage the u-bolt, they are easy to remove and replace.

Last edited by winston427; 11-04-2009 at 10:18 AM.
winston427 is offline  
Closed Thread

Related Topics
Thread Thread Starter Forum Replies Last Post
Fat Bob's 2" BB, Crown HD rear leafs T-Roy-TX Modified XJ Cherokee Tech 4 10-31-2015 01:14 AM
New to this forum and looking for advice denverXJ Cherokee Chat 7 09-10-2015 12:55 PM
rear tire carrier? mehoff_400 Cherokee Chat 18 09-08-2015 02:06 PM
8.8 & abs... Pez Modified XJ Cherokee Tech 3 09-03-2015 12:29 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 09:46 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.