trivia: the HEMTT wrecker was originally designed with the max capability of pulling bradleys off the battlefield. i've seen it done a few times. also, it'll handle an M9 ACE fantastic - seen the 10th Eng's do it all the time. M113s and M577s are child's play.
we had one convoy cdr have the bright idea of trying to pull a broke-down HET loaded w/ a BDAR'd M1 on the back. it made it a few miles (inching along, flat road, mind you) before the tranny completely gave up the ghost.
so instead of calling for another bob-tailed HET, we had to send 2 wreckers plus the HET to get everything back to camp. that was an all-nighter...
oh, and i'd've given anyone a field grade Article 15 for trying to tow an M1 w/ a HEMTT. not only is that retarded, it's deadly.