I want to build a tow rig using a Gen 1 Blazer for my '72 project. I'd like to run a mild 350 or 383 with a th350 or 400 with a 205 t-case & a 60/14 or 44/14 bolt combo. Will the 14 hold up to the towing rigors?? or should i scrounge around for a 70? also i'd like to run a 6" lift with 37s, but i'm thinking that may be overkill. any opinions?? that's what i really want to run but not at the expense of safety, so i may have to go with 4" & 35s. on the rear should i run a shackle flip or all springs?? also any idea on what size class hitch i'd need to tow up to about 10000 lbs?? thanks.