Spring isolators...rubber or poly?

[Brewkett]

I'm going to replace the stock coil springs with a Eibach Pro-Kit I picked up, but I need to replace the isolators.....due to age on the car.
Should I pick up some new OEM style rubber, or go with Polyurethane isolators?

I'm also going to replace the caster camber plates with MM, and replace any worn suspension parts while I have the car all apart. Anything I should keep an eye out for?

 

[01yellercobra]

I would go with stock replacements personally. I think most of the poly tend to be thicker and raise the ride height a bit.

I would check everything else while you're under there. Make sure the ball joints, tie rods, and sway bar bushings are in good shape.

 

[Revvv]

Poly will keep the ride height up just a little, but you will likely never see it. I went with poly isos due to longevity.

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[52merc]

What Revvy said.

 

[shurur]

The poly can raise the ride height up quite a bit at first, but collapses to nearly that of the oem over time...at the front for sure.

I don't think the rear poly iso compress as much as the oem rubber and give the car a bit more rake.