I finally got my van!! It's a 1985 G20 with a Rockwood Conversion for $600!! Heres my first question of many I'm sure. I had to buy a hitch for the van to haul my side x side. I'm assuming the van used to have a hitch on it because the 4 bolts that used to bolt the lower bumper brackets on are not there. Does any one know what size these 4 bolts are? There 2 in each frame rail. Thank you. How about sae or metric? The nuts are welding in the frame so I'll assume these are factory. What did chevrolet use in 1985.

 

Well after a couple of trips to the harware store. The bolts are 1/2" course thread.