Castor shims, which way do they go in generally?

[suburban99]

Ok, installed a tuff country 4" lift in my 1980 CJ7 and removed lift of unknown origin...Installed caster shims that came with the kit the same way the old ones were installed in existing kit. Smallest point of the wedge to the front of the vehicle. Jeep drives like ...rides good but hard to keep on road. Could I have the shims in backwards? If I am looking for positive caster of say 6-8* then the front axle would have to be rolled to the rear of the vehicle. Suspension is spring under...your thoughts?

 

[gert]

been a long time since i thought about caster shims so I looked it up on google, best way to know what you need is to measure though http://www.jeepforum.com/forum/atta...shims-now-shocks-wont-fit-image-774267409.jpg looking at this pic fat end goes forward

 

[suburban99]

That's what I found but the original ones were skinny end forward...so that's the way i replaced them...tough to keep between the ditches right now.
I think I need to switch them...

 

[Torxhead]

The skinny end goes toward the driver. Which can screw up the front driveshaft alignment, but help keep the front wheels straight.

 

[PaRenegade]

The thick end of the shims generally goes forward. Your wanting to tilt the top of the steering knuckle back so it's behind the bottom of the knuckle. This is "castor", the line drawn between the top and bottom ball joints. A rotation of the axle in a clockwise direction gives you positive castor, ccw gives you negative.