1998+ F250 Rear Axle
I bought that 1990 F250 w/ 7.3 IDI and ZF5, and I noticed it doesn't have the original rear end. It has the newer post-OBS F250 10.25 which is non-free floating by the looks of it (has no huge outer hubs sticking out of the rim). How good are these rear ends? By it being non-free floating I it imagine sucks.
1997 Ford F250 Heavy Duty XLT 4x4
7.3L PSD CCSB, E4OD, D50 TTB, 10.25 FF LS, 3.55's
2001 Ford E350 Super Duty Work Van