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Old February 12th, 2013, 11:14 PM   #1
Prox445
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Default Skid Plate Drop Removal

I am looking to move my skid plate back up. I have a 4" lift. Do I need to do a MML or longer shaft. I don't drive it on the roads. I just want to know if I run the risk of the shaft breaking or slipping out with articulation.
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Old February 13th, 2013, 01:16 PM   #2
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I would say yes on the mml
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Old February 14th, 2013, 12:50 PM   #3
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a mml would help a little but you wont be able to get rid of the tc drop. Even if you had 10 degree axle shims in the back you will still have major vibes that will result in ujoint failure, pinion and tc out put seal failure, and even possibly damage to your t case . you have to do the sye to get it back to stock.
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Old February 14th, 2013, 12:53 PM   #4
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Quote:
Originally Posted by Prox445 View Post
I am looking to move my skid plate back up. I have a 4" lift. Do I need to do a MML or longer shaft. I don't drive it on the roads. I just want to know if I run the risk of the shaft breaking or slipping out with articulation.
if its a trail rig you will be fine . i ran my dd like that with no problem for two years
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Old February 14th, 2013, 06:47 PM   #5
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Quote:
Originally Posted by Prox445 View Post
I am looking to move my skid plate back up. I have a 4" lift. Do I need to do a MML or longer shaft. I don't drive it on the roads. I just want to know if I run the risk of the shaft breaking or slipping out with articulation.
If you have a 4 inch lift and you have a slip yoke T-case and your rear pinion is not rotated from stock position AND you put the T-case back up where it used to be then you risk both breaking a shaft, and having it slip/fall out.

A mml will not be enough, you need a SYE (slip yoke eliminator) and then I imagine some shims on that rear axle. MML are good when you just need about 1-2 inches of lift compensation and just a very slight angle change.

jeeps are short wheelbase and your leaf springs have axle wrap...if you do go with a longer shaft bad things will happen besides your shaft falling out, if your shaft falls out bad things happen.

Even if it's just a trail rig do you really want to gain that underside clearance and deal with a donkey ass-suck trail repair with tow, or just keep it there til you can do it right.???

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Old February 14th, 2013, 06:58 PM   #6
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Im currently running my tj with a 4" lift and no tcase drop or sye just a mml
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Old February 15th, 2013, 11:18 PM   #7
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Im currently running my tj with a 4" lift and no tcase drop or sye just a mml
4" suspension lift?? What size MML?
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Old February 15th, 2013, 11:22 PM   #8
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Yup 4" suspension lift 1.25" body lift and 1" mml it has some driveshaft vibes but i dd it
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Old March 3rd, 2013, 12:01 AM   #9
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Bought a Brown Dog MML. This is a great product with great customer service!!!!

I don't drive on the road so I don't know about vibs but I didn't have any issue. I had this thing flexed to the max and didn't drop the driveshaft. I'm glad I did it!!!
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