take off shimmy
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Freshman User
Joined: Jan 2005
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take off shimmy
I just had my '05 6.0 F250 FX4 18in wheel Lariat long bed into the dealer for drive line vibration under moderate to heavy accleration at take-off. Ford has a TSB and a shim kit for the carrier to align drive shaft bearing angle.
I know this topic has been covered before but I would like some help.
The dealer put in all three shimms, returned the truck slightly improved but not fixed and said to put in 500 lbs in the back. That the Superduty is for hauling not executive transportation. OK, OK I did notice that you could put a whole lotta stuff back there, but I like it mostly for cruisin.... so if I'm stylin sue me .... I did also notice I like the looks and ride).
Well..... I am sure this is not rocket science. What if I lifted the truck? The drive line angle would be even more accute. What is the fix??
Thanks in advance.
I know this topic has been covered before but I would like some help.
The dealer put in all three shimms, returned the truck slightly improved but not fixed and said to put in 500 lbs in the back. That the Superduty is for hauling not executive transportation. OK, OK I did notice that you could put a whole lotta stuff back there, but I like it mostly for cruisin.... so if I'm stylin sue me .... I did also notice I like the looks and ride).
Well..... I am sure this is not rocket science. What if I lifted the truck? The drive line angle would be even more accute. What is the fix??
Thanks in advance.
Thread Starter
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Freshman User
Joined: Jan 2005
Posts: 25
Likes: 0
Thanks for the replies. The truck is stock but I guess I could keep going with more shims to see when it quits. Then I would be outside of Ford's '3-shim-max' fix. Also, then I might have problems in the other direction when I put a load in the bed.
I am a little confused by the comments the service manager made: They put in one shim and it was slightly improved, put in the second shim and it got worse! then they put in the third shim and got the best results...
I am a little confused by the comments the service manager made: They put in one shim and it was slightly improved, put in the second shim and it got worse! then they put in the third shim and got the best results...
Post Fiend
Joined: Jan 2002
Posts: 5,859
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From: USA
Do you have a Limited slip rear differential in this truck? If yes,you might want to have the dealer add a little more friction modifier to it.
In the past we have had a quite a few rear diff's with the improper amount in them causing a studder or shimmy on hard takeoffs.I'm not saying that the driveline angle is not also a problem.
Do a search on this you will see what I mean.
Rich
In the past we have had a quite a few rear diff's with the improper amount in them causing a studder or shimmy on hard takeoffs.I'm not saying that the driveline angle is not also a problem.
Do a search on this you will see what I mean.
Rich
