Project (insert name here)
Thread Starter
CF Veteran
Joined: Sep 2009
Posts: 1,471
Likes: 3
From: Knoxville, TN
Year: 1998
Model: Cherokee
Engine: 4.0 inline 6 (o yea!)
Okay, had some driveline vibes. Crawled underneath only to discover the rear universal joint straps were wearing out and allowing the U-joint to move around. Fix?
Ford U-bolt kit, HELP! brand part number 81004 from Autozone

First step was to remove old straps and drill the threads out using a 5/16
drill bit.


You can see the difference in the bottom holes which have been drilled.
Complete all four holes making sure to drill straight and evenly.
Then replace drive shaft, hammer in the U-bolts and tighten down.

All in all this took about 45 minutes....maybe. This took care of the drive-line vibes, increased the strength and eliminated the possibility of breaking a bolt on the trail and being stranded without a drive shaft.
Thanks to Skunkape for helping out
I also just ordered a new set of Yukon axle shafts for the rear...should be here soon!
Ford U-bolt kit, HELP! brand part number 81004 from Autozone
First step was to remove old straps and drill the threads out using a 5/16
drill bit.


You can see the difference in the bottom holes which have been drilled.
Complete all four holes making sure to drill straight and evenly.
Then replace drive shaft, hammer in the U-bolts and tighten down.

All in all this took about 45 minutes....maybe. This took care of the drive-line vibes, increased the strength and eliminated the possibility of breaking a bolt on the trail and being stranded without a drive shaft.
Thanks to Skunkape for helping out
I also just ordered a new set of Yukon axle shafts for the rear...should be here soon!
Last edited by sgtskid; Nov 12, 2010 at 11:21 AM.
CF Veteran
Joined: May 2010
Posts: 1,626
Likes: 1
From: Maryville Tennessee
Year: 1995
Model: Cherokee
Engine: 4.0 L
No problem,I wish flipping those axles woulda worked,but oh well.And next time we gotta close my garage door so nobody can see your candy cane shaft!I got neighbors ya know!
Thread Starter
CF Veteran
Joined: Sep 2009
Posts: 1,471
Likes: 3
From: Knoxville, TN
Year: 1998
Model: Cherokee
Engine: 4.0 inline 6 (o yea!)
ha ha, i just got an email from randys saying the axles shipped and according to the tracking number they are already in knoxville!!!! so hopefully by the end of the week i'll be sitting pretty again and maybe next weekend hit up a trail!
Junior Member
Joined: Nov 2010
Posts: 80
Likes: 0
From: Portsmouth, VA
Year: 1998
Model: Cherokee
Engine: 4.0
Nice Jeep, nice thread. I drove through Knoxville and Pigeon Forge last September driving a friends new RV back cross country, would love to head there in the spring when I get my Jeep.
Thread Starter
CF Veteran
Joined: Sep 2009
Posts: 1,471
Likes: 3
From: Knoxville, TN
Year: 1998
Model: Cherokee
Engine: 4.0 inline 6 (o yea!)
Yea I am up in that area all the time, lots of great hikes. Thanks for the comments!
Thread Starter
CF Veteran
Joined: Sep 2009
Posts: 1,471
Likes: 3
From: Knoxville, TN
Year: 1998
Model: Cherokee
Engine: 4.0 inline 6 (o yea!)
K, so here are some of the photos that magically disappeared from the lift install page.
Slip eliminator installed

Brand new control arm had a bad weld already.

Cutting out the old weld nut for the springs

Solution was to weld a nut to the back of a big washer and weld it in place using the bolt to line it up

[IMG]http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs1175.snc4/154739_898990114535_9427885_47974806_4423685_n.jpg
[/IMG]
But along the way got into a fight with a cut off wheel


Two stitches and part of my nail removed....YUMMY
Slip eliminator installed

Brand new control arm had a bad weld already.

Cutting out the old weld nut for the springs

Solution was to weld a nut to the back of a big washer and weld it in place using the bolt to line it up

[IMG]http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs1175.snc4/154739_898990114535_9427885_47974806_4423685_n.jpg
[/IMG]
But along the way got into a fight with a cut off wheel


Two stitches and part of my nail removed....YUMMY
Thread Starter
CF Veteran
Joined: Sep 2009
Posts: 1,471
Likes: 3
From: Knoxville, TN
Year: 1998
Model: Cherokee
Engine: 4.0 inline 6 (o yea!)
Alrighty, got the new Detroit installed and picked up a 48" high lift from a friend for $30.

First step was to remove rear wheels and brakes. Look at those purdy Yukons

Next removed the diff cover and drained all the oil. This gives a good shot of what the lunchbox locker looked like.

Next step was to remove the center pin from the carrier and then the springs and pins from the locker. Once this was done the axles could be slid inward and the c-clips removed.
Next step was to loosen the four large 3/4" bolts that hold the caps on the carrier bearings. This would allow the whole carrier to be removed. Like so.

Next remove the ring gear from the old carrier by removing the 10 bolts holding it on and then striking it with a rubber mallet. One thing VERY important is these bolts are REVERSE thread! Breaking one of these bolts is very bad because you can't just go to home depot and by them.....not to mention having to remove the broken piece from the ring gear.


This was working but was taking a little to long so I screwed 6 bolts back in quarter way and hit the tops of them with the mallet working in a criss-cross pattern. This was a lot faster.

Now, at this point I had practically brand new bearings since I just did gears at the beginning of the summer. However, getting them off is a nightmare so I would highly recommend just spending the extra coin (about $30) and buy new bearings.
New detroit in press getting ready for new bearings.

Then reinstall ring gear torquing the bolts to 75ft lbs and applying a small amount of blue loc-tite.
Here is the new locker ready for install.

Now, when reinstalling the new locker since the ring gear was removed the backlash will have to be reset. To do this there are adjusting "screws" if you will that are placed on either side of the carrier. Turning on these "screws" will allow the carrier to move from one side to the other thereby adjusting the lash. You can see in the photo below the round object with the hexagonal pattern in the middle and the little holes around the outer edges. This is the adjusting screw that will sit inside the bearing caps.
Normally a special socket is used with these little teeth on it that grab into the little holes and spin the screw. This is done by placing the socket on a very long extension and going through the axle housing. However, the socket barely fits inside the axle housing and if the wheel bearings are installed it won't fit. (as in my case) This is where I got creative and found a nut that fit the inside of the hexagonal pattern on the screw. I then welded the nut to a washer and found a piece of bar stock long enough to reach through the axle housing. I then welded it all together and voila. This new tool perfectly fit through the axle housing with the wheel bearings still in place. You can see all three in the picture below
Now for the installation of the locker and adjusting it. Sorry I don't have pictures for this a friend was helping me and he was on the clock so I didn't want to waste his time with stopping to take pictures, plus it was already dark outside and we were working by flashlight.
After the locker was installed, I had to put the axles and c-clips in. The c-clips fit inside two little "cups" inside the locker. In order for this to happen the clips needed to be ground down a little bit.

First step was to remove rear wheels and brakes. Look at those purdy Yukons

Next removed the diff cover and drained all the oil. This gives a good shot of what the lunchbox locker looked like.

Next step was to remove the center pin from the carrier and then the springs and pins from the locker. Once this was done the axles could be slid inward and the c-clips removed.
Next step was to loosen the four large 3/4" bolts that hold the caps on the carrier bearings. This would allow the whole carrier to be removed. Like so.

Next remove the ring gear from the old carrier by removing the 10 bolts holding it on and then striking it with a rubber mallet. One thing VERY important is these bolts are REVERSE thread! Breaking one of these bolts is very bad because you can't just go to home depot and by them.....not to mention having to remove the broken piece from the ring gear.


This was working but was taking a little to long so I screwed 6 bolts back in quarter way and hit the tops of them with the mallet working in a criss-cross pattern. This was a lot faster.

Now, at this point I had practically brand new bearings since I just did gears at the beginning of the summer. However, getting them off is a nightmare so I would highly recommend just spending the extra coin (about $30) and buy new bearings.
New detroit in press getting ready for new bearings.

Then reinstall ring gear torquing the bolts to 75ft lbs and applying a small amount of blue loc-tite.
Here is the new locker ready for install.

Now, when reinstalling the new locker since the ring gear was removed the backlash will have to be reset. To do this there are adjusting "screws" if you will that are placed on either side of the carrier. Turning on these "screws" will allow the carrier to move from one side to the other thereby adjusting the lash. You can see in the photo below the round object with the hexagonal pattern in the middle and the little holes around the outer edges. This is the adjusting screw that will sit inside the bearing caps.
Normally a special socket is used with these little teeth on it that grab into the little holes and spin the screw. This is done by placing the socket on a very long extension and going through the axle housing. However, the socket barely fits inside the axle housing and if the wheel bearings are installed it won't fit. (as in my case) This is where I got creative and found a nut that fit the inside of the hexagonal pattern on the screw. I then welded the nut to a washer and found a piece of bar stock long enough to reach through the axle housing. I then welded it all together and voila. This new tool perfectly fit through the axle housing with the wheel bearings still in place. You can see all three in the picture below
Now for the installation of the locker and adjusting it. Sorry I don't have pictures for this a friend was helping me and he was on the clock so I didn't want to waste his time with stopping to take pictures, plus it was already dark outside and we were working by flashlight.
After the locker was installed, I had to put the axles and c-clips in. The c-clips fit inside two little "cups" inside the locker. In order for this to happen the clips needed to be ground down a little bit.
Thread Starter
CF Veteran
Joined: Sep 2009
Posts: 1,471
Likes: 3
From: Knoxville, TN
Year: 1998
Model: Cherokee
Engine: 4.0 inline 6 (o yea!)
Yea, let me go take some real quick. Nothing was obviously broke like the last one. Just the teeth were all chewed up.
Tony, Do you still want or need a 29 spline carrier housing for your 8.25?
Tony, Do you still want or need a 29 spline carrier housing for your 8.25?






