[midniteblues]

the best stands I've ever used were my uncles steel wheels although not adustable they are all the same height. he has a rim flat on the ground and one standing vertical and extremely braced and welded too it. the dip in the rim between the two beads let just about any frame sit in there securly and they give a great highth he has heavy angled iron frames with metal wheels he can sit them on and has old seatbelts welded to the angle that go up over the frame too be able to cinch everything down he can roll cars in and out of the garage or the driveway with them I cant tell you how many tri fives been on those stands over the years but i would surely say there safe.

when I'm under with my hf stands( i have 6 of the smaller ones and six of the larger ones) i either keep the jack under or use another stand very near where I'm working even with one under each corner of the vehicle theres allways one under with me right next too me or very close