Matt...the setup at Speedway are side mounts that need welded to the frame. The setup at Classic parts that MikeB gave are like the original mounts (I recommend these). To use front mounting, you'll need the lower mount brackets that attach to the front crossmember (these were riveted on at the factory) and the upper V8 brackets (the V8 and 6 cyl brackets have different bolt hole patterns). You can reuse the threaded rods and hardware off the 6 cyl. If you can find a V8 truck in a salvage yard, get them to cut out the crossmember to get the brackets and then have them remove the rivets. Hopefully they won't damage the holes. These brackets can be bolted to your crossmember (the holes are already drilled). If that's not an option, get the setup from Classic parts (it's probably going to be cheaper). I swapped out my 6 cyl with a 283 recently using original brackets I was lucky to find on eBay. PM me your email and I can send you photos of the setup.
You'll need a V8 truck, NOT a car one, bellhousing as the 6 cyl one won't fit the 283. Test fit the tranny to the bell housing to make sure the front bearing plate fits snug inside the opening and it bolts up without modifying the bolt pattern. As MikeB said, the tranny will hang off the bellhousing, it's only supported by the bellhousing.
Last edited by Cablesmill; 12/01/2015 9:10 AM.