After it is done, you can set it up with the two tires on milk crates or similar.
Holding the tires still, rotate the center (pumpkin) section.
Measure the toe in/out of the two tires. Rotate center section.
If the toe changes, one of the tubes is not straight. Finding out where/if
the axle is bent allows you to use heat to straiten the axle tube after
the welding is done.
Best to get it as straight as possible at first. It can be fixed if not perfect.
Some race cars may have camber, and toe in/out bent into the axle tubes
on purpose.
Pete |