F250 vs F350 carrier bearing bracket

[SixStringMadness]

Anybody know if there is a difference in the carrier bearing bracket between and F250 and F350?

My truck is a 2004, and I just did a Rough Country 2.5" leveling kit and put F350 OEM blocks in the rear. I'm trying to adjust the carrier bearing, but I'm not sure I've totally corrected the take off vibration. Right now I've added 1/2" of shimming to the existing carrier bearing, but still have some shudder on a heavier take off, and no more bolt to add another 1/8".

I thought putting F350 blocks will still keep everything in spec, but there must be something else different in the F350 vs the F250 drive line and carrier bearing set up.

[oilfieldtrash6.0]

When you put the f350 block in the rear what was the difference in ride height?

[SixStringMadness]

It added 2" additional height to the rear.

[superdutyscaler]

you need a 1/4" drop for ever 1" in rear ride height. The 1/2" you added should be perfect for what you have now, im thinking your problem now is the 2" added block height is adding more axle wrap causing your heavy throttle shudder. Mkae sure your carier bearing is still in good shape no slop in there, if so some type of traction bars might be needed