the only reason for that TSB was poor fluid circulation to the tail shaft. which was later fixed

 

Kevin has the same prob I do Fast - We are both trying to solve , we have a slip/shudder at take off and it been bugging the pi$$ out of me for 8 months - Kevins been trying to fix his as well.

We think it's the clutch pac , but it might be the converter ? I 'm putting a Transgo kit in this weekend to see if it's the converter for sure. I think it's the rear, but not totally sure..

 

I didn't know that , how long ago was it fixed ?

Here's the one for 2x4's

Driveline - Clunk/Bump When Starting From A Stop
TSB 04-26-6

12/31/04

CLUNK OR BUMP WHEN STARTING FROM A STOP

FORD:
1997-2005 E-Series, F-150, F-Super Duty
ISSUE
Some 1997-2005 E-Series/F-150/F-Super Duty 4x2 vehicles may exhibit a driveline clunk or bump that occurs as the vehicle starts to move forward, following a stop. This condition may be caused by the slip yoke not sliding smoothly on the output shaft splines.
ACTION
Lubricate the slip yoke with Motorcraft PTFE Lubricant. Refer to the following Service Procedure.
SERVICE PROCEDURE

1. Verify the condition.
2. Remove the driveshaft per Workshop Manual Section 205-01. Be sure to index-mark the driveshaft during removal to maintain alignment during reinstallation.
3. Lubricate the slip yoke with 7-13 grams (0.25-0.46 oz.) of Motorcraft PTFE Lubricant.
4. Re-index and reinstall the driveshaft per Workshop Manual.
5. Verify the repair.

 

Right,I am gonna change gear oil and add double the friction modifyer and see if that helps in the next couple days.It's annoying

 

Here's the 4X4 one -

Driveline - Clunking/Grunting Noise/Shudder
Article No.
04-1-6
01/26/04

^ NOISE - DRIVELINE CLUNKING/GRUNTING NOISE
OR SHUDDER SENSATION DURING LIGHT TO
MODERATE ACCELERATION AND/OR BRAKING
^ TRANSMISSION - DRIVELINE CLUNKING/GRUNTING
NOISE OR SHUDDER SENSATION DURING LIGHT TO
MODERATE ACCELERATION AND/OR BRAKING
FORD:
1998-2004 F-150
ISSUE
Some 1998-2004 F-150 4X4 vehicles with a one piece drive shaft may exhibit a clunking or grunting noise and/or a shudder sensation from the driveline. The condition will typically occur during fight to moderate acceleration from a stop and/or braking. This may be caused by the slip yoke not sliding smoothly on the transfer case output shaft splines.
ACTION
To service, lubricate the slip yoke with Teflon Grease (D2AZ-19590-A). Refer to the following Service Procedure.
SERVICE PROCEDURE

1. Road test the vehicle to verify the condition.
2. Remove the driveshaft per Section 205-01 of the Workshop Manual.
NOTE INDEX (MARK) THE DRIVESHAFT YOKE TO AXLE FLANGE FOR REASSEMBLY.
3. Lubricate the slip yoke with 7-13 grams (0.25-0.46 oz.) of Teflon Grease (D2AZ-19590-A).
4. Re-index and reinstall the driveshaft per Workshop Manual.
5. Check the transfer case fluid level and add MERCON Automatic Transmission Fluid XT-2-QDX if necessary.
6. Road test to verify the condition is corrected.

 

That sounds exactly like what mine is doing I did not have any grease on mine when i pulled it so maybe i'm in luck

 

Well, I don't mean to burst your bubble - I did the Teflon grease deal on mine already and it didn't change a thing - so don't get your hopes up

But maybe it will fix yours.

I think we need a clutch pac , so I'm not getting my hopes up with the Transgo install - But if that doesn't change the shudder in any way , I will change out the clutch pac right after and I'll post pics and give yuh the resources - I have to do it quick , have to go back to work soon - then , I'm out of time, prolly be workin 60-80 hours per week..

 

I figured you say that and i'm not expecting it too fix it,hoping though

 

when u drop the pan u will see cluth material in the fluid that settles to the bottom if ur clutches are slipping but if they are its either from fluid going out or the pump is dieng...

 

That would be cool if you had some pics and info cause i'm not familiar with rears but i can fix about anything with directions
Lucky you back to work
Me i'm part timing basicly, lookin to switch occupations
If i don't find a new job soon i'm gonna be broke

 

check the balance of the drive shaft.. it only cost me lik 30 bucks to get it balanced no charge if there is nothing wrong with it.

 

Yeah I changed my fluid and didn't see nothing back then w/100% Amsoil- I had my trans on the bench at one time and really didn't feel like takin the thing apart at the time lol .

But I will be looking for that - what happens with my particular trans (4x4 E4OD)is the 4th clutch snap ring pops off - the pressure plate might be broke and jumped apart. The Trango upgrade comes with all those parts to replace, that's why I got this kit . If you have slippage or shudder in the trans/converter , this is suppoese to fix it..

 

If it was out of balance wouldn't it vibrate at other speeds????

 

I am to - been an operating engineer for 15 years , always having the winters off - starving by the time we get back to work, but then they work the sh^t out of yuh - it's getting real old..

 

construction worker?