Pivot shaft problems
Not to rain on your parade but I have heard bad things on the polly bushing. Like they deteriorate fast.
Properly installed and cared for poly bushings will outlast rubber and not squeak.
Poly bushings MUST be lubricated. They are not like rubber, it’s a very different material. If they are not lubricated they will squeak, and they will deteriorate. I have been running poly bushings for tens of thousands of miles and over a decade. If you install and maintain them properly they’ll last the life of your car.
To that end, I always install grease-able pivots when I use poly LCA bushings. And adjustable strut rods, but that’s not for the life of the poly bushings.
Ok so this has happened 2x now. I install the bushing on the shaft, install LCA and slightly tighten on the nut then boom the nut won't unthread or loosen. This only happens on the drivers side.
With 2 different shafts and 2 different nuts; the nut has gotten stuck (maybe cross threaded?) And won't come off. When I try backing it off the shaft/bushing spin in the lca and start taking the bushing out of the lca. I dont use power tools on the car, everything is done by hand tools as I like having a feel for how tight things are getting.
Have I done something wrong? Will it be different if I have the torsion bar in?
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I haven’t used PST’s polygraphite bushings, but if they’re anything like regular poly bushings you’re not going to be able to torque them to spec with hand tools alone. The poly bushings spin in the shells and on the pivot pins long before you get develop enough torque to hold them.
I use a 3/8 impact to rattle the pivot nuts down until they catch the pins and put enough torque on them to hold them in place for the final torque.
Also, if the PST bushings are like the poly bushings that slide into the old outer shells, they don’t need to be torqued at ride height. Rubber, OE style bushings have to be tightened like that because they don’t spin in the shells or on the pivots and will tear if torqued at full extension and then are cycled all the way through to full compression. Poly bushings spin, so the LCA position when they’re tightened is irrelevant.
This is what I have been telling all of you about the poly bushings being junk. Look at the picture and swallow your words. " no They can't move back the struts hold them in" LMFAO Lube it up a little more with a pin with a grease fitting. It may walk front and back a little easier and not squeak.
For a guy that’s had 40 a-bodies, you’re completely clueless on how their suspension actually works and can be modified. Your understanding of how a poly bushing actually functions is appalling.
Poly bushings do not function like rubber. They can not be installed or maintained as such. Properly installed and cared for they’re far superior to rubber. If yours weren’t, you did it wrong. Period. Doesn’t matter how long you’ve been doing it if you’re still making the same mistakes as 40 years back.
Now post a picture of someone else’s drag car with a completely hammered Ackerman and pass it off like you should know what you’re talking about again.
