[Jim Kaekel]

Most TH-350 4WD cases used the special cast aluminum dust cover that helped strengthen the case, but you probably don't need it since you don't have a big, heavy transfer case hanging off the back of the trans. I would use a stock rubber trans. mount with stock engine mounts and a torque strap on the left front of the engine. If you want to help prevent case breakage, make or buy a brace that connects the boss on the right side of the bellhousing to the boss at the rear that's right in front of the tailhousing. I broke several bellhousings over the years prior to installing a brace. That's my .02.