I just pulled my 71 this last weekend on one of the auto transports. Towed great, the 1st gen's only weigh in at about 3,500 and the trailer max is like 3800 so I was ok there, but here again width is a problem, many places probably won't rent one to you if you tell them your going to haul a blazer on it. Also there are 2 different trailers one has 15" rims w/ 6 lug and the other version has 14" rims w/ 5 lug. You can't usually spec this but you should go to your local uhaul place and measure. Also the fender that folds down, note the bolt heads that stick out, they WILL bite the side of your tire. not good. So measure first, see if you can get some offset rims or really skinny tires on spares so you can squeeze on the trailer. Also mine has 31" tires on it and the straps just BARELY bite enough to ratchet down, in fact one side I had to wedge some stuff in the ratchet to get it to bite the strap, all this after airing way down. I didn't check the dolly, was concerned with dragging the truck instead of flat or trailered, Uhaul is fazing out their tow bars and I couldn't find anyone else who had them around so if you choose that route then you'll have to either borrow or build. hope this helps,
Like em big and topless