Mohawks are seriously heavy duty ! My back hurts just thinking about installing one .I bought a used weaver on CL about 8-9 years ago, one of their last before rotary bought them out to squash competition. (1989)
Weaver had been around basically forever to that point. VERY heavy built. Equal length arms, 9k capacity, mine is a 1986.
About 2x as much steel in it as the Y2K era rotary I work off of at work. Much wider base plate for the columns too. .and has no top cross bar, has a floor plate under which 2 heavy chains run.
When I got this one the only one (then) currently available that was comparably heavy was a Mohawk, I looked at a bunch And it was $7k when Greg Smith lifts could be had under $1500
And I have no back issues! Lol