So a while bake I was after a brake conversion, mainly from an Expedition rear disc view point. I reevaluated what exactly I was going to use my truck for and it seems that it was not practical for towing to have rear disc. My research took me to the 97-99 F-250 "Light Duty". It seems that this had the best brake setup for towing.

The install was pretty straight forward. Replacing caliper brackets and calipers from an Expedition (same year series). Replacing Booster and Master cylinder. Just finished it today and the difference is phenomenal. Why it did not come this way to begin with is beyond me.

 

Cool.

 

So there were no changes to the proportioning valve? Did you begin with disc brakes?