I have an 03 F-250 6.0 Crew Cab. 20" wheels, 4" Rancho lift and 10.25 rear end. I have this issue with what feels like the drive shaft shaking on take off. Doesn't seem to matter how much or little throttle I give it but it starts at take off and then stops at between 10-15 mph. Its not real violent, but has calmed down since I replaced the drive shaft support bearing. When I replaced the support bearing I did check the U joints and they seemed tight. Could this be a rear end problem, pinion gear...? Not really sure what to make of it. Doesn't seem that there's any slippage or anything. Any ideas people? Thanks in advance
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You need to shim the carrier bearing.

 

TSB
05-17-6
DRIVE-AWAY SHUDDER OR VIBRATION
Publication Date: August 16, 2005

FORD:
1999-2006 F-Super Duty
This article supersedes TSB 04-22-7 to update the vehicle model years.

ISSUE:

Some 1999-2006 F-Super Duty vehicles may exhibit excessive drive-away shudder or vibration, under moderate to heavy acceleration from a stop. This may be due to driveline angle.

ACTION:

Shim the center carrier bracket downward to correct the condition. Refer to the following Service Procedure.

SERVICE PROCEDURE

When shimming the center carrier bracket, a maximum of three (3) 1/4" shims may be used (EOTZ-4A209-A). When refastening the carrier bracket use bolt (56564-S2). A 7/16 x 14 grade 5 bolt may be substituted providing that it extends at least three (3) threads past the nut. Use Motorcraft Threadlock 262 (TA-26), and torque bolts to 46 lb-ft (62 N-m).

NOTE: IF THE VEHICLE IS NORMALLY LOADED, ROAD TESTS WILL NEED TO BE PERFORMED WITH THE VEHICLE LOADED.
Before beginning the repair, road test the vehicle to gain a feel for the harshness of the shudder/vibration.
Install one (1) shim, (DO NOT use Threadlock on the bolts at this point), re-road test vehicle.
If condition is corrected, apply Threadlock and torque bolts as directed above.
If condition is not corrected, re-perform Step 2 (to a maximum of three (3) shims) and reevaluate vehicle.
NOTE: IF THE CONDITION IS STILL NOT CORRECTED AFTER INSTALLING A MAXIMUM OF THREE (3) SHIMS, REFER TO WORKSHOP MANUAL SECTION 205-00 FOR FURTHER DIAGNOSTICS.

PART NUMBER PART NAME
EOTZ-4A209-A Shim
56564-S2 Bolt
TA-26 Threadlock 262 Motorcraft
WARRANTY STATUS:

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage

OPERATION DESCRIPTION TIME
051706A 1999-2006 F-Super Duty: Road Test To Verify Concern, Install One Shim, And Road Test To Verify Repair (Includes Time To Raise Vehicle And Install Threadlock) 1.2 Hrs.
051706B 1999-2006 F-Super Duty: Road Test To Verify Concern, Install One Shim, And Road Test To Verify Repair Condition Still Exists, Install A Second Shim And Road Test (Includes Time To Raise Vehicle And Install Threadlock) 1.7 Hrs.
051706C 1999-2006 F-Super Duty: Road Test To Verify Concern, Install One Shim, And Road Test To Verify Repair, Install A Second Shim And Road Test Condition Still Exists, Install A Third Shim And Road Test (Includes Time To Raise Vehicle And Install Threadlock) 2.2 Hrs.
DEALER CODING

BASIC PART NO. CONDITION CODE
4A209 42

 

I seem to be seeing this problem pop up
a bit more. Or is it I am just watching out
for it because I have that same problem?

Sean

 

Awesome!! Thanks alot Redford! I will let you know how it goes. Yahiko I wish I knew if it was happening more often, but I don't. I can tell you that my buddy has the same issue with his 03 F-350 and this info will be passed on to him.

 

It happens with the long wheelbase trucks and a lift. Sometimes (as indicated by the TSB) it happens to a stock truck. At any rate, it is a fairly easy fix.

 

I found out with a call to ReadyLift that they have
some non-tapered blocks. After I went out and had a look
I found out that the blocks that were ordered were tapered.
The ones that came off the truck were non-tapered. So......
Time to reorder.

Sean