@Bill Grafmiller posted:So if I understand correctly you would have to mount kadee's on the truck and not the body if i wanted to use on 54 degree curves and under
No, I would say 0-42 and under, as my yard tracks are 0-42 and I spot cars no problem with fixed kadees. Remember Kadee's are meant for scale equipment with large curves and more or less smooth track. Grades are allowed but need to have smooth transitions. Kadees are not meant for semi-scale, smaller, tight curve layouts.