08-20-2008, 08:41 PM
That is a common trait of a straight 4x4 axle. I'm guessing that the .8 and .3 degrees are positive? That would mean that the top of the tire is leaning out .8 degrees and .3 degrees. Usually the spec is for negative or the top leaning in. It can be hard to adjust on a solid axle suspension. There are shims that go behind the spindle at the knuckle. That means a lot of labor to install and you may not be able to tell any noticeable difference in the drive.
The cross measurement is the difference side to side. I like around .5 or less. But some manufactures have up to or more than 1 degree for road crown. That is a common spec on the axles in the class 8 trucks we build.
I would worry more about the toe in and caster being correct as they will have more of an affect on how it drives.
The cross measurement is the difference side to side. I like around .5 or less. But some manufactures have up to or more than 1 degree for road crown. That is a common spec on the axles in the class 8 trucks we build.
I would worry more about the toe in and caster being correct as they will have more of an affect on how it drives.
'72 TBA...