I bought some Bilstein 5100 series while they were on sale, unfortunately they are about 3-4" longer than the rancho's that I originally had, but they have been needing to get replaced for a bit now and the the website that i bought them from doesn't have them in a shorter length. so would it hurt to install them or should i just wait and order some new ones? She's a 93 pickup 3.0 4x4 with a 3" body lift sittin' on some 33's.

 

Only way to tell is for you to measure your collapsed length and extended lengths to see what you have to work with. We can only guess and that won't do you any favors if we're wrong.