MML vs SYE + double cardan shaft

fljeeper

TJ Enthusiast
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Joined
Feb 7, 2016
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138
Location
Bradenton, Florida
I have a 98 Sport with a manual, 2 inch spring lift, Dana 44 rear. Since installing the Dana 44 and a shorter drive shaft my drive train vibrations are very noticeable around 40 - 50 MPH or when accelerating hard. This is expected when you look at the increased and mismatched u-joint angles due to the lift, longer differential housing and shorter driveshaft. I was wondering based on actual experiences if a one inch motor mount lift would solve the problem or do I need to go to a SYE, double cardan shaft, and adjustable upper control arms?

Thanks,

Dan
 
A mml may get rid of the vibs you are feeling. You are nearly guaranteed to get rid of them with the sye, dc shaft, and adjustable uppers.
 
X2 to what Rob said. the MML may or may not work, there is no guarantee. Really what you need is a SYE, DC driveshaft, and adjustable upper rear control arms. That's the proper way to do it.

The MML won't hurt to try by any means, just know that none of us can say for sure if it will work or not, as every vehicle is different.
 
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Personally, I would do a MML, BL and the SYE/DC rear drive shaft. All of these together will keep the rear drive shaft at a low angle. Additionally, the MML/BL is needed for other very beneficial mods. Then I would go so far as to use a super short SYE to keep the drive shaft as long as possible.
 
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