I have a sway bar from an 80 Trans am does anybody know if it will fit my 71 skylark? Not sure the stock size of my original sway but its a noticeably smaller than the TA's
Done it several times. Here is a detail form Georges site. http://www.buickperformanceclub.com/swaybar.htm
Yes, I've also done it a dozen times. It makes a really big difference in the handling. If you look at the George's document, two things to remember: 1) Use taller end links to clear the tie rod ends. I've never been able to use the regular ones that came off the GS without it hitting. I've used these: https://shop.advanceautoparts.com/p/driveworks-suspension-sway-bar-link-kit-dw-k8265/15510351-P 2) The tie rod end adjusters and clamp bolts will potentially hit the sway bar on compression and turns. I normally rotate them to the bottom like they are in the first pic of George's article.
I've done it on my 71 Skylark Custom convertible. The primary thing that I found needing was that I had to use socket head (Allen) bolts to install onto the frame, as there was not enough clearance for normal hex head bolts.