Ok here's the deal. I got excited and bought a triangulated four link kit on ebay. I bought it from an individual that didn't use it, but believe it's from FBI rides. It's a triangulated kit made with 1inch DOM. 1 inch DOM is what Competition Engineering uses on their bas kit so it should be good. The problem I see though is that it comes with 5/8 heims. The car it's going into is a '47 dodge with 383 big block. This is a fairly heavy car with a fairly stout engine. I will also be bagging it. The problems I see are using hiems on all ends and the 5/8 bolt size. I'm thinking that the heims will alow the rod to twist. so I was thinking about putting bushings on the frame side and heims on the axle side. My thought process here is the bushing would reduce the rod twist whish would reduce wear on the heims and the heims on the axle end would keep things from binding since I will havequicte a bit of travel with the air bags. Also are 5/8 heims strong enough? should I upgrade 3/4 heims? I would like to keep as much of what I have to cut cost down, but I also don't want to have an unsafe or unreliable car.