Originally Posted by xBones
Basically, when lowered, the beam pivots upward. This causes the factory negative camber to become positive toe. Replacing the beam will rarely fix the problem, and it WILL NOT fix it if you've got lowering springs.
thank you for chiming in xbones. your knowledge and experience is most welcome.
you stated lowering the box creates positive toe. i assume that this would be within an acceptable range because trd makes lowering springs specifically for our vehicle. lowering the box with trd springs should not throw it outside of the "green".
i'm no expert, it's just how i perceive it with my limited knowledge.
i have never tried the shim kits, but thru some research i discovered the moog kit would be the "best shot" at correcting this issue. indeed, it will take some level of "trial and error", "back and forth" when installing these shims. i can see why a dealership would not chose to invest that kind of time and effort with no guaranteed outcome. not to mention to tie up an alignment rack for who knows how long.
personally, i would be willing to give a shot if i hadn't got a new beam. my service director was willing to work with me and together i'm confident that we would have figured it out.
my axle beam was out specs before i lowered my box. i had lowering springs installed with the new beam and everything was tight. can't seem to locate that printout at the moment. i did have an alignment check in jan 2012 before a road trip. all "green" on nf210 springs. (see attach)
this thread started with an xB2 rear being out of specs lowered on trd springs. i'm confident we can come together and solve this issue for our fellow forum member. and have that solution available to others.
"Mr Clean" 08 xB CSM, OEM Spoiler, Scion NAV, Scion Leather Steering, Lexus IS-F Shift, TRD CAI, Denso IK22, CSM Fuse Box, CSM Engine Cover, CSM OEM Alt Pulley, OBX Silver WP Pulley, AP Silver Crank Pulley, Chrome JDM Strut Brace, Chrome OEM Battery Tie-down, TRD Struts/Shocks, Tanabe NF210, Hotchkis Rear Sway, CSM 17" Wheels, Nitto NT850 225/45