Technical i beam alignment question

I have a 57 chevy truck and the wheelbase is 1/2in shorter on pass side and I looked and I beam is a 1/2in back on rf

is there sometimes two alignment holes on top of I beam and the wrong hole got used or is this normal?

 

No. Axle is slightly bent on one end.......but it can be fixed.

 

A good TRUCK alignment shop should have the equipment to bend the axle back where it belongs .

 

It could have sheered the center pin on the leaf springs from a pot hole hit something similar. Take the weight off the front and loosen the u-bolts to see if the pin is still there.

Another possibility is the spring is installed backwards and the center pin just happens to be offset.

 

Look at the shackles are they at the same angle?

 

pulled rf leaf spring apart and leaf spring pin is shaped like a lightning bolt lol...kinda S shaped

 

That should be a big part of your problem. I'd think reworking both springs at this time would be a good idea.

 

I planned on replacing leaf spring pins in both sides,u bolts,shackles and leaf spring bushings

 

Sounds like you have a project now. I would think the U bolts would not have to be replaced unless they are bent or the threads are chewed up.