Thread: Wheel alignment

bit more background,

Has always had this problem, I have only owned it 2months

Checked all tied rods, bushes etc as best i could

Has 33" coopers STT's and a 2" lift, will I need a RTC steering damper purely for the STT's?

It is speed related but doesn't always do it, had the wheels balanced and it, again, improved things marginally...

I have gone ahead and ordered a new steering damper

One thing that came up on the alignment was the castor being 0, didn't think a 2" lift would be enough to cause this, might be worthwhile looking at slotted swivels?

Originally Posted by Duarte19

Has 33" coopers STT's and a 2" lift,

Big tires that are hard to balance won't help. Being Coopers with a reputation (well earned) for tread delamination would make me doubly suspicious.

The 2 inch lift will have reduced the castor to near zero which will also lead to shimmy issues.

I've got a minor shimmy in mine at the moment - everything else has checked out OK so I just picked up a new OME damper to see what that does.

The shimmy turned up with my 255/85r16 - doesn't seam to balance out and is so minor that I can only notice it on freeway smooth roads.

I'll let you know what I find - will also get everything triple checked by someone else in a couple of weeks time too just to be sure.

If the shake is there on bends and bumps then would pay to scrutinise the radius rod to differential housing bushes, if they are soft or collapsing this WILL cause a horrific shake, even worse sometimes when going downhill on a bend...

DO NOT fit urethane to these, genuine only is the way to go. NTC6860 are the better ones. NTC 6860 - Radius Arm Front Bush, Later large type

JC

Originally Posted by justinc

If the shake is there on bends and bumps then would pay to scrutinise the radius rod to differential housing bushes, if they are soft or collapsing this WILL cause a horrific shake, even worse sometimes when going downhill on a bend...

DO NOT fit urethane to these, genuine only is the way to go. NTC6860 are the better ones. NTC 6860 - Radius Arm Front Bush, Later large type

JC

Thanks JC - although not my issue (this time) as the RA bushes are brand new.

Playing around under the truck today while fitting the new damper I noticed two things - 1. My trailing arm to chassis bushes are showing some minor wear (lift related) and 2. There appears to be a (small) amount of play in my steering box.

Interested in your thoughts on this.

Originally Posted by justinc

If the shake is there on bends and bumps then would pay to scrutinise the radius rod to differential housing bushes, if they are soft or collapsing this WILL cause a horrific shake, even worse sometimes when going downhill on a bend...

DO NOT fit urethane to these, genuine only is the way to go. NTC6860 are the better ones. NTC 6860 - Radius Arm Front Bush, Later large type

JC

Justin, those look like the triple sleeve type ?

I prefer the Defender/two sleeve type, they allow much more articulation than the Disco version (which acts like an anti-roll bar, of sorts as it increases roll stiffness by increasing bush stiffness) or Super Pro's urethane ones which are so easy to fit and nearly allow as much articulation as Haultech's old Holey Bushes, or at least a little more than the two sleeve genuine rubber ones.