DId ya make sure your tires/wheels still spun and steeredfreely (through all ranges of the suspension travel) after adding the fuel line spacers? It could possibly be binding up the suspension? I used "o" rings (made for the shockabsorbers) in mine, and started with 2 per axle.. (one in wheel side cup, one on in diff side cup) and that was too tight.. It wouldnt let the dogbones move at all, even when the suspension was at rest.. So I ended up with just one o ring per axle.. Just make sure that you can move your dogbones a little, back and forth, once its back together.. After that, then ya need to make sure your servo saver is installed right and your steeering linkage isnt kinked up somewhere.. Good luck and keep us filled in when ya get back to it!!