bran1har

I got a 1990 k2500. My boss has a an older i think 80s k20 that has a hitch he said he would give me. Does anyone know if the frame rails are the same space apart and if this will fit. Any input would be greatly appreciated.

old dog

i think your 1990 uses a wider hitch the older one should only be about 34 " wide

SWHouston

Things like that are very easy to adapt. Take it, and if it really is wrong, at least you'll have a few parts you can use when you do a correct installation.