Well now that Im Elite i figured Id start a thread to document my SAS build...
OK, I'm not positive, but I think early Bronco coils work better on Explorers
Hmm. So I missed most of this, but I am trying to get caught up.
Bob Meyers over at RRORC used to make some lower coil buckets with some caster built into them to help with coil bow. I don't know if he still does.
I like BC broncos Early Bronco coils best on a rbv- and I have tried a butt load of them. They have the lowest spring rate of anything I have found and you can get them in .5" height increments. I am also a firm believer that a longer coil mounted on the same suspension as a shorter coil will travel better. That is why I am running their tallest coil on full height f150 buckets. And they do travel like crazy.
I will be honest with you- there are a lot of parameters in tension when you are solid axle swapping and I believe the coil bow is one of the least important. I have driven them 100,000s of highway miles with coil bow and wheeled many miles and never had an issue. The more valuable variables to worry about are caster, pinion angle, keeping those rear radius arm mounts high and out of harms way, moving the axle forward to clear the firewall with big tires, clearance for the drag link/ tie rod, flat tracbar, etc. Coil bow is at the bottom of the list. It is only an aesthetic thing.