castor degree

[simcoe]

whats the ideal positive castor degree
just got baack from the tire mob after getting an alignment done
left front is negative 1' 44 right front is neg 2'
got 3 degree castor bushes coming soon
that will get me back to about the positive 1" mark
has 3 inch lift with a packer in the right front .right fronts alwasy seem to sag.. engine torque and driver im guessing

i'v got a spare set of 5" plates in the shed.
these will make to much positive castor wont they.,.?

thanks

[chops]

what vehicle?

[simcoe]

gu

[chops]

from memory, factory caster is around the 2 & 1/2 degrees positive

[simcoe]

so if i put the 5 deg plates back on the castor will be about 3'+ on the right and 3'56+ on the left

or with the 3deg bushes will be 1'56+ left front and 1'+ on right

what do you guys reckon is the best result
i could just try both i spose..

[chops]

too much caster with big tyres will cause tyre wobbles at high speeds

try to avoid any type of any non-rubber bushes for your radius arms, you'll lose a fair amount of flex - any bush over 2.5 degrees of change and you'll lose flex

try the plates first, and see how it goes.. especially if you have them already!

Hope that helps

[simcoe]

not running 35's or nothing like that.just 33's 12.5" r 15

yeah might try the plates and if they dont work, drive back in the shed and put the bushes in...it's never ending.lol wont have time until the wknd now tho..i'l keep posted
what do all the gu owners out there with a 3 inch lift use..?


must say tho with my old gq i had a 3 inch lift(just coils and shocks),1 inch body lift, 33's.flogged the absolute guts out of it and never got it balanced or aligned and drove fine.. newer cars must be more sensitive.although the gu isnt much more than a gq is it..

[Jimbo]

I run 33's in my gq and have plates. Got a wheel allignemnt the other day and i have roughly 0 degrees castor and it handles fine.

[simcoe]

ok cheers
i assume you have 5 deg plates in
they dont make 4 deg do they in the plates
trial and error i suppose,try 3 deg bushes then allignment if thats fine leave it.if not then 5 deg plates then get alignment done again.

thanks

[simcoe]

well tried the 5deg plates and still wobbles at 60 odd kays to 80 pretty bad.havnt got it aligned yet tho.should i start getting cranky or wait till i get it aligned... and throw in the 3 deg bushes then.

[chops]

align/balance.. then get cranky

[simcoe]

just another quick question
will an adjustable drag link help to get rid of the wobble
steeering wheel is exactly side on...if ya get my drift.old mans quite capable of taking the steering wheel off..but just wondering.
thanks

[chops]

adjustable drag link will just give you the ability to straighten your wheel without removing it

[simcoe]

ok sweet
it actually works out good cos my cruise buttons are right near my thumb lol