Thread: Urgent-caster correction bushes

Did you put them in the right way around ?

They came with a template so I just followed it. I can only assume they are the right way round.

Go back a bit. Have you/ did you get a base wheel alignment reading ?
Castor correction bushes are just that. If you already have plenty of castor, and you fit correction bushes , you may now have too much, and the result is ' castor shake '.

There are plenty of other potential issues. If your old bushes were stuffed, they may have been masking other problems such as loose wheel bearings, or wheels/tyres out of balance. I have often seen a front end tightened up with new bushes, and other issues suddenly become apparent.

If you are satisfied the bushes were required and have been installed correctly, you will have to work through a check on the front end and drivetrain to eliminate other possibilities.

Anything that was changed at the same time as the bushes should also be checked, including rotating tyres/rims. No such thing as coincidence.

Thanks. I had thought about the new bushes accentuating other faults....but where to start :-(

I had the wheels balanced today and wheel bearings seem ok. The only other thing that was changed with the radius arm bushes was the pan hard rod bushes but they all seem tight and no movement.

The front prop shaft is a new Tom Woods shaft installed a month ago so i would be very surprised if the problem was there.

I did pull out the front prop shaft tonight to see what happens and the vibration has reduced dramatically. It is still there but not in the same intensity.

Maybe it really is as smile as the fact that I did not need castor correction bushes. I have a little over 2" lift and I only used the 3 degree correction bushes so it should have been perfect for it. But...........

Im thinking that I might just take a punt and see if I can get a new set of standard bushes first thing in the morning. It won't take me long to press in some new bushes and if that is the problem I can be on my way by lunchtime.

If not then I get the weekend at home!!!

Expensive way of doing it but a potential quick fix.

What was your original problem ? before the castor correction install , why did you decide to do the bush mod ?

Been down this road.. it takes a while to get good lift, good wheel travel, reliability, and good drivability.

My guess is that the bushes have rotated the axle a tad, and now the drive shaft flanges are out of true - no longer parallel to each other.

The best fix is slotted hubs, enabling adjustment back again. As time is short, I'd be putting standard bushes back in.

Those corrected bushes don't last long btw, you'll be looking for another solution in a few months..

Regards
Max P

Ok, well none if that really matters now.

Chopper, in answer to your question. The radius arm to chassis bush was worn so since I was going to have the arms out I decided I might as well replace all bushes. I have used super pro bushes in the rear and they are great and when looking for front bushes I noticed they sold caster correction bushes so I thought I might as well try them.

Anyway, I pulled them out today and replaced the axle end bushes with standard landrover rubber bushes.

AND THE VIBRATION IS STILL THERE!!

Back to the drawing board. It's just so frustrating now.

Originally Posted by Tusker

The best fix is slotted hubs, enabling adjustment back again. As time is short, I'd be putting standard bushes back in.

Regards
Max P

Discovery 2's have a different axle/hub setup to Defenders/RRC/Discovery 1's which means slotting is not an option

Originally Posted by walker

Ok, well none if that really matters now.

Chopper, in answer to your question. The radius arm to chassis bush was worn so since I was going to have the arms out I decided I might as well replace all bushes. I have used super pro bushes in the rear and they are great and when looking for front bushes I noticed they sold caster correction bushes so I thought I might as well try them.

Anyway, I pulled them out today and replaced the axle end bushes with standard landrover rubber bushes.

AND THE VIBRATION IS STILL THERE!!

Back to the drawing board. It's just so frustrating now.

Taken from the Les Richmond Automotive website
"The use of castor correction plates in some vehicles may cause drive line vibration. We unfortunately can not guarantee a vibration free product. However the 4 degree kit is less likely to cause problems over the 6 degree plates. All this will depend on modifications preformed on each particular vehicle."
I guess caster correction bushes could have the same side effect. But in your case there seems to be another cause.

I'd be re-looking at the Tom Woods front shaft, especially as you said the vibration reduced with that removed.