Hello everyone. I am getting ready to re bush the upper and lower a arms on my 69. Should I go with the rubber replacement or polyurethane? Please give me some input, Not road racing or anything like that. Just tooling around town. Thanks:yes:

I out polyurethane bushings in mine, but it isn't on the road, yet. if you go with the polyurethane ones, make sure you put the grease on them that comes with them.

I put poly on my 69. Just thought that they would last longer than rubber. Had them on for one season now since my suspension rebuild. But rubber might give a little softer ride. You choose what suits your needs or future plans.

I recently changed mine to poly - no squeaks, no regrets and if your suspension is working well in other respects (shocks & springs) you shouldn't feel any jolts or reason to wish you would have gone with rubber ones. One recomendation - buy extra grease and no reason to skimp on it. I'm glad I did cause what was supplied in the kit would not have been enough. Also - if you don't already have the cross-shafts with the nuts on the ends vs. the originals that use bolts to secure the bushings then seriously think about changing them. The originals are wimpy and can strip out and bolts can unthread - not good at all! Mine did and I've heard of serveral other accounts. THe others use a deformed nut (That's really what they call it) so bolt requires force to loosen. My .02.

No reason not to use poly. They are better and last longer. Restore parts make them black. There is NOTHING worse about them. Oh, they generally cost a little more.

Go with rubber, especially if you don't want the bolts to unscrew or have to change shafts. The upper A arms don't have as much load on them as the lower arms do, so Poly is tolerated there more easily, so I'm not pushing all that hard for the rubber, just feel it's more reliable, less chance of squeak problems.
David

I have usually used rubber or the PST polygraphite.

I think rubber bushings usually get a bad rap because people replace the original, 40 year old bushings with brand new urethane ones and cant believe the difference. Well... no kidding. For normal street application, I think few would notice a significant difference between new rubber vs. poly.

Don't do either.

Do Del-a-lum bushings. They will last the life of the car, they will allow the suspension to pivot and move freely without the binding that rubber and poly will have, and they do not deflect like rubber or poly.

They will not make the ride harsher as the suspension can move more fluidly than if it had either rubber or poly. They work great on non raced street driven vehicles.

Tyler

Don't do either.

Do Del-a-lum bushings. They will last the life of the car, they will allow the suspension to pivot and move freely without the binding that rubber and poly will have, and they do not deflect like rubber or poly.

They will not make the ride harsher as the suspension can move more fluidly than if it had either rubber or poly. They work great on non raced street driven vehicles.

Tyler

More expensive, but this is really the best way to go with long life, and no harsh ride or squeaking issues. You do need the shafts with nuts on the ends, not the bolts. I had the bolts unscrew even when safety wired!
David

Mine are "poly-graphite". The black ones!

pdq67