After my lift I have noticable bump steer.

With the RSK and new springs in place the front end is now about 2" higher than stock F350. The D60 swap included the track bar and the pitman arm.

I did not measure their angles before the lift but I did not notice any bump steer before.

My track bar is now at 13* and my steering link at 8*, 5* of difference.

As the the track bar (21") is much shorter than the steering link (36") I expect its angle to change quicker as the axle is moved up. So I'm not surprised and the angle difference.

I've read that the two need to be within a degree of each other to not have bump steer.

My rough math says that for each inch of travel the angular difference increases about 1*.

I know the springs and shocks will let the springs uncompress 3" from ride height.

I don't know how much the U code springs will compress but there is 6" of room for springs to compress before the axle hits the stops and the shock cannot compress any further. I suspect 3" of compression is typical, I'll test this later.

This seems to tell me that having the track bar and the steering link being parallel to each other is a condition that only exists while at ride height, and changes as the springs compress/uncompress.

Should I drop the track bar to make it parallel to the steering link or drop the track bar so it is perfectly level with the axle and add a 5" drop pitman arm?

I'd like to hear other's experiences please.

Thanks!