I went with a rear mounted manual Chrysler rack and pinion on my straight front axle. It's mounted on the axle and uses a Double D shaft for extension and compression as the front end moves up and down. Since I'm using a stout Chevy Van I-Beam axle, it is hidden fairly well behind. There is absolutely no "bump" steer at all. I have some extra caster added in with shims under the leafs, but this is a drag race car only. It is a little hard to turn, with a spool in the rear which complicates corners. I think without the extra caster and a differential rear end, it would corner nicely. Make sure that the Double D shaft can slide in and out without binding. Also, very important, the shaft can't bottom out with full compression, not to mention the importance of the shaft staying engaged when the front is in full lift. I limit my axle drop with safety chain between the frame and axle.