Spring re-arch, anyone have a before and after pic of the bumper to bump stop gap? And how long can a re arched spring hold the new arch?

 

my experience is it is not worth it.
the springs usually sag back to where they were within a year.
it is cheaper to just replace the springs while you have them off.

 

I had the front springs re-arched on my 94.5 work pickup(F250 4x4). The shop added 1 inch more height to the arch. Put at least 200,000 on them, no sag.
Find a good shop, that re-archs springs all the time.

 

I had my fronts redone five years ago with an added 1/2". Still perfect!

 

There is a company called ATS spring. They seem to be very reasonably priced on new springs with bushings.

 

I think the info here is pretty typical. some people don't have good experiences and some do. I think the biggest thing is to find a Good shop to do the work. If you don't have a good shop close then purchasing new ones would be a better idea