Pivot pin sleeves seized

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Craig Burriss

Craig Burriss

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If any of y’all have been following along on my other thread, you’ll know I’ve been having issues with my dusters front end. Turns out my new poly LCA bushings got ruined by the inner sleeves that were somehow damaged previously. I’m going to replace them with some rubber bushings and was planning on grinding down the inner sleeves to make them smooth again. But they are seized onto the pivot pins for the LCAs. I tried soaking it in PB blaster, heating it up with a torch, using two giant pipe wrenches, but the sleeve will not budge. Should I just try to cut the sleeves off with a dremel? I can’t find any new sleeves anywhere, it seems like new sleeves only come with the poly bushings.
Any recommendations? Should I just get new greasable pins with poly bushings or should I just get some rubber bushings and try to find new sleeves?
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New rubber bushings come with sleeves.
You can use a cutting wheel to remove the sleeve from your pin.
IMG_20190701_124813587.jpg


If I were going the poly route, I'd contact Peter Bergman at bergmanautocraft.com, and use his Delrin bushings and pins. He's a member here, @GMachineDartGT. No sleeves required.
 
If you’re going to replace with oem style, the inner sleeve will come with the bushings, the rubber is bonded to the inner sleeve and outer housing. I take a 3lb mini sledge hammer and using the flat on the back of my vice smack the devil out of the sleeve on the pin, roll pin and repeat. It will loosen and come off.
 
Thanks guys, I’m ordering some moog rubber bushings now. I didn’t know they were molded onto the sleeves.
 
Because its a pressed together assembly the lower arm needs to be near ride height position before tightening the pins nut. Wrong procedure can rip the rubber away from the metal.
 
If you're going to go with the rubber bushings, I don't recommend the Moog brand. I have bought some lately, and there has been some discussion on this forum about the "new" design they are using. The rubber poured into the bushing overlaps the shell, and it makes it very hard to press the bushings into the LCA. That thin layer of rubber makes the press mandrel want to squirm around. I bought ProForged and had much better luck. They are made like the old Moog part.
 
As for removing the sleeve, I used a cut-off wheel to score the sleeve longitudinally in several spots. Then a small cold chisel tapped a few times at the end of the sleeve will loosen it up just enough to twist it with channel locks or a pipe wrench. Once it's loose, it should slide off pretty easily.
 
That old sleeve will come off easily with a hammer. Lay it on a vise and hammer on the old sleeve down the length. It will stretch the sleeve and it will fall off. New bushing comes with sleeve melded to the rubber.
 
charliec said:
As for removing the sleeve, I used a cut-off wheel to score the sleeve longitudinally in several spots. Then a small cold chisel tapped a few times at the end of the sleeve will loosen it up just enough to twist it with channel locks or a pipe wrench. Once it's loose, it should slide off pretty easily.
Click to expand...
That’s what I ended up doing. It came off by hand once I sliced it open with a dremel.
 
Craig Burriss said:
If any of y’all have been following along on my other thread, you’ll know I’ve been having issues with my dusters front end. Turns out my new poly LCA bushings got ruined by the inner sleeves that were somehow damaged previously. I’m going to replace them with some rubber bushings and was planning on grinding down the inner sleeves to make them smooth again. But they are seized onto the pivot pins for the LCAs. I tried soaking it in PB blaster, heating it up with a torch, using two giant pipe wrenches, but the sleeve will not budge. Should I just try to cut the sleeves off with a dremel? I can’t find any new sleeves anywhere, it seems like new sleeves only come with the poly bushings.
Any recommendations? Should I just get new greasable pins with poly bushings or should I just get some rubber bushings and try to find new sleeves?
View attachment 1715357493 View attachment 1715357494 View attachment 1715357495 View attachment 1715357496
Click to expand...
Air chisel usually vibrates them off pretty easily.
 
S'cuder said:
New rubber bushings come with sleeves.
You can use a cutting wheel to remove the sleeve from your pin.
View attachment 1715357500

If I were going the poly route, I'd contact Peter Bergman at bergmanautocraft.com, and use his Delrin bushings and pins. He's a member here, @GMachineDartGT. No sleeves required.
Click to expand...

Delrin is quiet and self lubricating. They offer precise motion and last forever. My pins come with the proper ID. No outer shell needed either. Light years ahead of the rubber pieces, especially what is out there now.
 
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