After searching high and low on various message borads, I couldn't find any solid information as a far as part numbers to use. So, after measuring my stock WS6 springs and using what limited info. I could find, I ordered the ES-3.6108 for the rear and the ES-9.6102 for the front.

These are the general GM mid-size/full size/S10 pieces and I'm hoping they will work. Summit's estimated shipping is Monday (more likely Tuesday with the holiday). I should have them this week and I'll post my findings after matching them up to the stock springs.

I know some people are interested in this so I decided to be the guinea pig.

 

Did you find this thread in your searching? Coil Spring Isolators...(Yeah I know...its been beaten to death)

There's lots of good info on isolators in that post. Also PM ebmiller88, he loves to talk about suspension work.

HTH

 

Well you got me interested.

Take some side-by-side pictures of the stockers and ES pieces when you get them.

 

Okay, I received the parts from Summit today and here are the results of my findings:



The isolators on the left are the Energy Suspension #9.6102G and these are the GM general fit. They are a match for the front springs. It seems the front suspension on our cars has enough in common with other GM models. The tubes on the left are included and can be used on the pigtail end of the spring that sits in the A-arm. Summit price is $25 for the complete kit

The small isolator on the right is the ES #3.6108G. This is also the GM general fit. These DO NOT work for the top of the rear springs in our cars. I forgot to factor in when ordering that most GM cars with rear coil springs have both ends tapered. Unlike our springs which are tapered on the bottom only. However, these are useable for the axle end of the springs should anyone have a desire to do so. For that, they are a fit. Summit price is $5 a pair.

The #9.6108 are probably a better fit for the top of the rear springs based on the specs from the ES web site. Keep in mind though that these are thinner than the factory isolators and could affect ride height a small amount. They also may not fit tightly around the post in the body and this could allow the rear springs to shift. IMHO, the factory isolators are best for the rear.

 

I hasen't run front isolators on my car for over 10 years. Just eletrical tape the tops where they touch the cans. Then grease them.

 

I know many people remove the isolators, but I prefer having them in there. The next time I have the front suspension apart, I'll drop in the ES ones.

The ES isolators look like they'll stay in place better. The factory ones tend to shift around a small amount.