Those rod ends with the rubber bushings are sold at hot rod shops but I'm unaware of specifics. I'm not even sure you can call it a rod end. I only attached the photo to my posting because I was speculating that's the kind of chassis attachment used in Mark's aluminum a-arms. I've seen Hall's aluminum a-arms and that's exactly what they used for street applications. Hall also sold a competition version of their aluminum a-arms and the only difference was, they used a proper teflon lined rod end or Heim Joint, like the one in the photo below. With proper rod ends, you can get BIG TIME caster because you can move the entire upper A-Arm back in the mount. I suppose you could also use rod ends on the lower A-Arm and move it forward to increase your caster as well (or a combination of the two). Just be careful when playing with caster because it's possible to get way too much caster when you start moving A-Arms backwards and forewards. By the way, don't let anyone tell you that using rod ends to mount your A-Arms will give you a harsh, noisy ride. It's simply not the case when using high quality, teflon lined rod ends.
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