Axle housing size?

[Browning01]

I have an 01 F25 4x4 and I called to order some blocks and ubolts for my rear. They said they need to know the size of my axle housing (how big around). Did some of the trucks have different axle sizes in this year F250? I thought they were all the same?

[OptimusStroke]

If you're dealing with a dealer, find a dealer that actually knows something about their trucks. Yes, same rear axles on both F250 and F350. You could get 2" and 3.5" oem lift blocks on either too, from the factory. The DRW may have had a different axle, but IIRC, it's the same diameter and spring pads (just narrower or wider placement than the SRW).