I'm trying to find a manual or an exploded drawing of a tilt

I'm trying to find a manual or an exploded drawing of a tilt wheel for a '90 GMC 3500?
My tilt wheel system sheared a pin or something I can not find any manuals to cover this

they are pretty easy to work on if you have tools if tilt isn't working it may be the lever if wheel is loose it's bolts inside column you have to take off steering wheel and lock plate and you may be able to see them they may be tightend but will loosen again you have to use lock tight if they keep coming loose you may have to replace column go to library to get information or local parts store

Have you checked the local library. I live in Reno and one of the branches has an broad group of manuals. it is worth looking into.

the best place to find this is at helminc.com, and purchase the correct manual like the pro's use

Go to your local GM dealer's part's dept. Ask them to go to catalog group 6.000 and bring up the exploded view of that steering column. most of them will do it for you and can print it out