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Re: carrier bearing / center bearing squealing got any ideas
This is the TSB for your problem:
Article No. 03-22-2
NOISE - DRIVESHAFT CENTER BEARING NOISE - VEHICLES BUILT AFTER 6/1/2002
DRIVESHAFT - DRIVESHAFT CENTER BEARING NOISE - VEHICLES BUILT AFTER 6/1/2002
Publication Date: October 17, 2003
FORD: 2002-2003 F SUPER DUTY
Some 2002-2003 Super Duty F-Series vehicles built after 06/01/2002, with a multi-piece driveshaft may exhibit a squeaking and/or squealing noise from the center bearing while driving. This noise is produced when the bearing seal rotates in the bearing outer race.
To service, replace the center bearing. Use a center bearing assembly with a white paint dot (built after 6/9/2003). Determine the style of the driveshaft per (Figure 1) and (Figure 2), then follow the appropriate Service Procedure below.
NOTE: WHENEVER DRIVESHAFT REMOVAL IS NECESSARY, IT IS IMPORTANT TO PAINT MARK THE DRIVESHAFT TO THE TRANSMISSION (OR TRANSFER CASE) AND THE REAR AXLE. ADDITIONALLY, MARK A PAINT LINE THE ENTIRE LENGTH OF THE MULTI-PIECE DRIVESHAFT ASSEMBLY. THIS IS ESSENTIAL TO INSURE THE DRIVESHAFTS ARE REASSEMBLED IN THE SAME ORIENTATION AS ORIGINAL. FAILURE TO REASSEMBLE THE DRIVESHAFT IN ITS ORIGINAL ORIENTATION MAY RESULT IN AN UNBALANCED DRIVESHAFT CONDITION.
'02 F-350, auto, 4wd, 4:10, CC, DRW, LWB, Lariat, ISSPRO x 5, MBRP 4" SS, AIC, AIS, DTLS, BriteBox, Red-Head steering gear box, coolant bypass, 203 t-stat, 6.0 cooler, 120k... mostly stock but strong, pulls and hauls whatever I ask!!!