New member here, working on a 66 J3600 I bought a couple of years ago.
Originally it had a 232 but at some point someone put a 258 from an IH in it, along with home made engine mount brackets that weren't spaced correctly and a whole lot of messy mods as a result.
Do I need to look for original engine brackets or will later 258 or 4.0 brackets and mounts fit? I'm not finding much info on pre-72 trucks...
This is what it should look like: