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-   -   Do I need spring isolators on the top and bottom of my rear springs? (

ml69 08-03-2019 02:53 PM

Do I need spring isolators on the top and bottom of my rear springs?

I'm getting ready to install my new rear in my 70 GTO. I bought new springs and rear control arms from UMI but they didn't include spring isolators. Are there supposed to be isolators on the top and the bottom of the springs? They were only on one side when I took the old springs out. Thanks for your help.


454 Rattler 08-04-2019 06:30 AM

I'm sure that by now you searched the internet and got your answer.


ml69 08-04-2019 12:34 PM

Nope I haven't. I posted the question so I wouldn't have to keep looking for the answer. I have to order the isolators no matter what so I'm not in a super huge rush and ordering four was the smart bet but I just needed the answer in the next few days for when I install the rear. Still looking for help on this.


cerial 08-04-2019 12:56 PM

Leaf spring isolators are nothing more than usually like a puck. Sometimes the spring will have a hole in it showing you where the isolator goes. Sometimes the isolator is more like a pad in which its inward the spring more held in place by the outer brackets.
No matter the case the isolator is usually nothing more than a way to buffer the leafs. A spring is going to slide without isolators it'll just squeak more as you have metal-to-metal contact. A bit of routine grease can lessen the squeak.

In general though the isolators go in between the springs one way or another.

poncho62 08-04-2019 12:58 PM

GTO is coil spring.......Anyways, the isolators make things quieter. Not sure if they had them top and bottom.I remember ones at the top.

454 Rattler 08-04-2019 01:11 PM

I typed in 1970 Pontiac GTO Rear Spring Isolators and found them. It appears that they only go on the top of the spring. The price ranged from about $3.50 to $17+ dollars.

I hope this helps.


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