Repairing Rear Suspension Mounting Holes?

[Clone TIE Pilot]

Rating my post as dumb does not qualify you to know what the hell you're talking about. That is your opinion, and you're entitled to it. But don't go off spouting it as fact.
I as well as many others on here have and will continue to run boxed LCA's and poly bushings and whatever else you deem as being unacceptable with no problems whatsoever. On the street, on the track, wherever you like.
Get a life, and go join a restoration board. You're obviously more suited to that.
😡

Yes it is a fact boxed arms and poly bushings transmit more stress into your mount and frame and also cause binding that leads to both mount damage and snap oversteer, not just a mere opinion of mine. It is documented and it is known 4 links are prone to both wheel hop and binding and it is difficult to fix one without making the other worse, this can easily be searched and found all over the net. But go ahead and keep those fingers stuck in your ears. Perhaps you should follow your own advise and grow up yourself. Your behavior has been really immature in this thread.

http://www.elephantracing.com/techtopic/binding.htm

http://www.miracerros.com/mustang/t_suspension.htm

http://www.crystalridge.net/cars/bushings.htm

http://scandc.com/new/node/646

 

[pontiacgp]

I'll have to check it again to see how bad it is. I was in the process of replacing some boxed poly lcas with some Umi poly/roto arms when I noticed it on the drivers side. I guess I was too late. I had to get the car back together so I could move it, but will take a closer look at everything this weekend. I though I was okay with poly since I had sphericals in the rear housing ears and this is only a street driven car. I guess I was wrong.

I would suggest the elongated hole was caused by whoever opened the hole to 1/2" for the poly bushings. There is no way the boxed lowers caused that elongation of the hole. We ran boxed lowers in all our Metric circle track cars with poly bushings and I ran lower boxed control arms with poly bushings for years in my GP until I change the rear for an A body rear. When I put in the UMI control arms I inspected the holes and there was no elongation.

 

[hawkfan]

I would suggest the elongated hole was caused by whoever opened the hole to 1/2" for the poly bushings. There is no way the boxed lowers caused that elongation of the hole. We ran boxed lowers in all our Metric circle track cars with poly bushings and I ran lower boxed control arms with poly bushings for years in my GP until I change the rear for an A body rear. When I put in the UMI control arms I inspected the holes and there was no elongation.

I've only had the car for ~2yrs and only drive it on the weekends so you are probably right about the damage already being there. I'm the one who installed the spohn arms with the poly on them but I didn't have to drill out any holes for the bolts that came in their hardware kit to fit. They slid right in. I believe the bolts in the hardware kit were 12mm.

 

[hawkfan]

I went ahead and ordered these:

http://www.tmrcustoms.com/store/index.php?main_page=product_info&cPath=8_276&products_id=2245