Were the rear leaf springs re-arced? Typically people just use lowering blocks that can be removed and the stock height restored. BTW, the wagons have a longer leaf spring than the sedans. They also take a slightly longer shock that is rather hard to find and can be expensive.
Suspension wise a 1973 wagon (yea, I have one too) is probably the worse Pinto to have. The wagons have the longer springs and rear shocks, - and all the '73 Pintos have the one year only steering rack, one year only front spindle (just found that out recently) and the difficult to find and expensive '71-'73 rotors. So much for being a "common, economy" car!