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radius arms

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Budgie:
Like Chugga, I've got Scorpion radius arms fitted and notice the difference on the first drive. The vehicle used to "tramline", weave all over the place and require constant diver input to maintaine a straights line on the road.
As soon at the new radius arms were fitted it tightened up the steering back to what it was before a lift was fitted. :D

Like Chugga says, when you fit these it brings the nose of the diff down towards the ground and this vastly increases the angle of the transfer box U/J on front prop causing a pulsing in the U/J that is transmitted right through the vehicle. I don't know what this will be like with only a 2" lift but with the 3" lift I have it soon started to wreck the front output seal on the transfer box and can't be good news for the output bearing either!

Wide yoke front props don't cure the problem, the only way to go if you have the problem is with Caden jointed front propshaft from a TD5 Disco which you can get either second had form someone like Equicar or new from Devon 4x4. You will also need the transfer box output flange from the TD5 to mate the propshaft too.  

If you do a search through the Modified section there is a whole thread about the problems with the front proshaft.  :wink:

Range Rover Blues:
I don't think that castor correction increases the transfer box UJ angle that much, the probelm is that it reduces the axle UJ angle to zero, so whereas without the castor correctiopn the 2 UJs are cancelling each other out (not completely but to an extent) once you fit it the 'fun' really begins.

Budgie:
With the 3" lift on the vehicle the transfer box U/J was close to binding when sat on level ground once I'd fitted the caster correction arms. But I can see what you mean about the straight U/J at the diff end stopping them from cancelling each other out. :D

Colin, some light reading for you:
Here's the prevoius thread on the radius arms for you and this one is all about the front prorpshaft.  :wink:

colintandy:
thanks for that budgie just read all them threads what a can worms have i gone and opend up  #-o here we go then so basically if i fit a new set radius arms and bushes and that will sort out the wanderring steering ect but could i say could cos mine has only a 2 lift it could cause me to have prop vibration problems due to the angle of the diff ect.. then the best way is to correct this is to  use a double carden front prop shaft is that correct :? or have i been reading this for to long and its all mixed up in me head :oops:

Budgie:
That about sums it up Colin.

Tomcat Motorsport used to make special swivel housings that had been machined to correct the caster angle. I don't know if they still make them but if you could get a pair then they will sort the problem without changing the angle of the axle or the propshaft.

There,  now you're really confused!  :D

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