FWIW I believe you are getting some bad information on availability. Drawing from memory, you can use a poly kit for a 97. Actually the uppers are the same for 97 as the 96. However the lower is different. There are post showing how to cut the lower bushing to fit....
Also, there is no outer sleeve to replace on the lower. it is part of the control arm.
Edit to add, I tried upper 97 arms on mine, but the ball joint stud is a different size.
Last edited by 93 ragtop; 03-16-2017 at 09:35 AM.