Rubber or Poly?

[mrlobster]

I'm replacing all the rubber bushings in my '72 GMC and am debating original rubber vs. polyurethane. I'm concerned about the noise and harshness of the poly but am curious about how much of a difference it would make to the overall handling. Anyone put poly in and regret it? People satisfied with rubber?

[H20cooled]

from everything that I read everyone recommended going with rubber for the mounts. That what I did and they work great.

[cdowns]

Years ago i put poly mounts on my daily driver threw them in the garbage about one and half months later then went back to original rubber

[hugger6933]

Now they WILL affect the handle on the truck/car they are put on. But they squeak and make the ride rough[er]. I would recommend staying with a [quality] type rubber product.

[Fitz]

Originally Posted by mrlobster

I'm replacing all the rubber bushings in my '72 GMC and am debating original rubber vs. polyurethane. I'm concerned about the noise and harshness of the poly but am curious about how much of a difference it would make to the overall handling. Anyone put poly in and regret it? People satisfied with rubber?

I used all poly bushings when I dropped my truck. ECE sway bar front and CPP bar rear help handling but sway bars and all poly bushings make that truck corner FLAT at 40mph. Rubber bushes make it wallow around like a drunken poser. I autocross the truck and the bimmer boys in the Southern Arizona SCCA chapter just look the other way with wan smiles when my brand new 48 year old truck beats their best times by full seconds, not tenths. So, poly was, for me, the only way to go! Noise? Never noticed any.

[72MARIO]

I have used poly engine and transmission mounts but will never do so again they transmitt to much vibiration. The only place for poly on my trucks now is sway bar bushings.

[mrlobster]

Thanks to all the replies. I'm going to go with rubber and then poly in the sway bars.