Assuming you are working in a 2nd gen, there are only a few bolts for the fenders, if memory serves :
1. Rear of fender to A-Post (can only see this one when you open the door)
2. Rear fender to firewall - will need a ratchet extension to make this one easier to loosen
3. Rear fender to top of cowl
4. Front fender to radiator shroud - top and bottom
5. Fender to inner fender well - these would be visible from the top looking down standing over the passenger fender
6. Rear fender bottom to rocker / inner fender well
I may have missed a few, but if you poke around, they are not too hard to find. I don't know if your hood is on or not but I highly suggest you mark all your bolt locations and where the fender meets the bolt + exact number of shims used per spot. If you have nice body gaps, you will want to put everything back the exact way you found it or you could screw up closing your hood / p. door.
Good luck.