give us a call at the shop. WE can set you up with some serious strength, after all i come from the high end Desert racing industry where strength is survival. For that Kind of power you are looking at some 1.25" F-K heims with 4130 arms fully TIG welded arms and some 4140 Light Racing recievers. When it comes to building some super strong arms, we are the ones to call. Even if you are going to do the fab yourself we can set you up with the Heims, recievers, and even CNC cut out 4130 plating for the arms as well. We could set you up with something like this, but alot stronger because of the horsepower.
We CAD design all the parts we make and stress test even before any metal is even cut.
here is a F-K 1.25" heim, 125,000 LB rating!!!
Jason
562 595 5410