Most of the later model 235's I've seen have already been drilled for the single front mount. If you're running the bellhousing with the 2 side mounts it'll just be a matter of adding the single front mount.
However, you're going to have to do some scouting to find 2 of 4 of the necessary front mount components: the box and the plate that hold and sandwich the rubber insert. The insert and dust cover are available from most vendors but I could never locate a source for the 1/8" thick base box and upper 1/8" plate.
Also want to add that it is critical to grind down a stock GM front box for adequate clearance as the replacement rubber inserts aren't as thick as the originals and even though it APPEARS you'll have enough you won't when the weight of the engine is added. You WILL have engine vibrations radiating through the frame if the clearance isn't increased and you won't realize it until you have all the sheetmetal installed. I covered some suggestions in my webshots albums. A little extra time getting the front mount clearance correct before the truck is buttoned up will save you HOURS of blind, arm-bending, wrench-throwing labor.
Dave
