A Frame Rear Ball Joint

mrbieler

Well-known member
Sep 15, 2004
71
13
Lost Angeles
1997 D1. Surprisingly, this wasn't that big of a deal. Thankful it's a South West truck. 2 hours start to finish including my fumbling around. I'm having shoulder surgery in 2 weeks so I'm scrambling to complete PM's before I'm a one armed bandit for a while.

The two cross bolts were a piece of cake once I broke out the pneumatic impact gun. First they soaked in PB Blaster for about 30 minutes. A whack on the end of the nut from a sledge hammer to set the tone and zip zip zip they spun off. Once I confirmed those bolts were going to be no problem, I had to tackle the castle nut which was being very stubborn. I'm still not sure of the correct size of the nut or of the the replacement. 30mm seemed the closest but it still seemed sloppy. Maybe my cheap Chinese wrench was the issue. After coming to the realization that it was not going to come off, the angle grinder and cut off wheel resolved the issue. A good solid tap on the end of the ball joint with the sledge popped it about 1/2 way out. I pulled the two cross pins which took tension off the assembly and it popped out easily.

Reinstallation was only a challenge because I had a lot of trouble getting to 130 foot lbs on the two cross pins using only one functional arm while laying on by back under the truck but I finally got it there.

All fluids and grease fitting done. Next weekend new brake pads and fuel filter and I should be good to go for a while.
 

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DarylJ

Well-known member
Apr 3, 2011
440
24
Doylestown, PA
Doesn't look like your pictures worked.

I'm particularly interested as I'll be doing this on my D1 as part of the full suspension bushing refresh. I've been "saving" the rear until I'm ready to replace the floor in the back because I figure it will just be easier to do when I cut all that rusty junk out and before I weld the fabulous new britpart tinfoil back in.
 

mrbieler

Well-known member
Sep 15, 2004
71
13
Lost Angeles
I should have done a better job photo documenting things. Before I jacked it up, I tried to all the 3 bolts first to see what could be done. When I realized the castle nut was going to be a bear, I moved to the cross bolts which the impact wrench quickly sorted. Once they were loose but still in place, I lifted the truck. The jacks on the frame had the truck up so the rear tires were just off the ground. I was able to cut the ball joint nut with everything in place. The brake lines were close, but I moved my grinder shield to protect them. Once it was just about cut through, a cold chisel and hammer got it started and it wrenched off with no problem. I knocked out the cross pins before I popped the ball joint completely out of the axle which took the pressure off the joint and I think limited the axle rotation/pop I've seen and heard others mention. That made reassembly easy. Everything lined up pretty quick.
 

DarylJ

Well-known member
Apr 3, 2011
440
24
Doylestown, PA
Pictures working now, and thank you very much for the description. I figured I was going to be cutting most of this out with a grinder or the oxy torch.