When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
On my year you just turn the top nut off the top of the shock, you have to hold it from spinning though with a hex key in the top of the rod. Is this the part that is stuck? On mine I clamped the hex key in my vice then held the shock down onto the key so I had a very positive hold on it, then turned the nut off. If there is any rust clean it off and use oil. Also since you have new shocks you can just grind the nut off if the hex key strips.
I would jack up the car and soak the entire mess down with PB Blaster. Go out the next day and then start removal. I use a large pair of straight-jaw vise-grips to hold the rod from turning(you are throwing these out anyway, right).
If all else fails, get out the torch! The blue-tip wrench ALWAYS works!
I replaced the front and rear shocks on my 89 a few years ago and do not recall any big issues on the rear shocks. However, the front shocks limits the downward movement of the front suspension. You shoud raise up the front of the car and then place a jack under the front suspension of the shock you are attempting to replace. This will relieve the pressure on the upper nut and make removal easier. Hope these words make sense!
Thank you all for the tips - I ended up cutting the nut off - and ran out of time - So I will continue this project next weekend. I think the guy I bought the car from used it as a test of strength - although these were the orginal shocks. Looking forward to finishing the project, having winter end and getting back to driving it.