I have just got a 6" superlift installed with 37x12.5x17 bfg km² m/t's on to my 07 3500 megacab 4x4 diesel, now when i exclerate it has a bad shutter and a bad vibration when any kind of throttle is pushed! I know the kit did not include a drop spacer for the driveshaft idler bearing. Could this be the problem? And advise would be greatful! thanx guys! and gals!! lol

 

Is yours a 5.9 or 6.7 CTD and what trans is in it?

 

its the 5.9 and not to sure what tranny it is but its automatic

 

Do you think the driveline angles are too far out of whack now? I know on my jeep when I lifted it, I had to shim the rear axle to get the angles right again.

 

That sounds like it could be the issue. Kind of like when a U-joint is going out, same type of feel?

Oh, and just because it's going to happen:

[sm=ttiwwp.gif]

 

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right on guys thank for all the info i will source the carrier bracket spacer and ring for the transfer case, i do have the 2 piece driveshaft so thats hopefully what i need, and ya like aka_chewy said it does feel like a u-joint going, but its not! lol Also i would put a pic on here of it but i dont know how to make my picture small enough to let it load on here!!

 

Mine made the same noise and I traced it to the front shaft (when I removed the front shaft, the noise stopped). Once I installed the transmission drop plate, the noise went away. The funny thing is, when I asked the customer service at top gun customz about the unlabled plate before my installation, they said, "Oh, we aren't sending those out anymore, its worthless, just a paper weight, you can go ahead and throw it away." Well I'm glad I didn't listen to those geniuses.

 

i do have the tranny drop plate in it, but from ehat everybody around here is saying is that it most likely the carrier bearing, in my mind i think that it should be a solid mount insted of the rubber mounted bearing. there is to much play in that rubber mount i think!

 

IF THEDRIVE SHAFT IS NOT AT THE RIGHT ANGLE IT WILL FEEL LIKE THE TRANS, REAREND AND TRANSFERCASE ARE ABOUT TO COME OUT. ITS HARD TO BELIEVE THAT JUST A LITTLE ANGLE CHANGE CAN HAVE SUCH A BIG EFFECT. I DON'T KNOW HOW LOSE THE HANGER BEARING IS BUT IT SETS IN A RUBBER CUSHING, SO YOU SHOULD BE ABLE TO MOVE IT AROUND A LITTLE. I WOULD START SHIMMING THE HANGER BEARING DOWN A LITTLE AND SEE IF IT CHANGED IT ANY.