With my new 350 in my 88 iroc I'm twisting my body bad. I need to get sfc and found this on Summit but they don't say if the will fit.
https://m.summitracing.com/parts/upi...DUkaAjrE8P8HAQ

Wanted to know has anyone used them?

No the ones your looking at are 4th gen ones...
These are the ones that I have on my '88...
http://umiperformance.com/catalog/in...roducts_id=127

That is what I put on my TA. With the T-tops they really help cut down on the squeaks

With them I have to cut out my old control arm mounts?
I don't care if I do

Nvm I see the go around them to use both

No you strattle the stock mount the bolt goes thru there connector and the stock then you weld them together

Thought so that's good. My driver side mount is a bit rusted.

If you are running a y pipe buy the UMI connectors. If you are running exhaust inside the transmission tunnel then buy the BMR connectors. If you or a friend or relative can weld then forget buying them and just make em. The outer connectors are very simple to make. The drivers side is a straight bar with two saddle joints and then another bar at 45* to the transmission tunnel. Look at the current last page of my build thread and you can see how they mount and look.