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Old 05-06-2011, 05:12 PM   #1
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stupid question

whats it mean to give your jeep a tummy tuck?

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Old 05-06-2011, 05:16 PM   #2
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make the t-case skid flush with the bottom of the frame rails.

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Old 05-06-2011, 05:20 PM   #3
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hmmm... my skid plate was lowered in inch. the guy i bought it from said it was done to adjust the angle of the driveshaft to compensate for the lift
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Old 05-06-2011, 06:11 PM   #4
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hmmm... my skid plate was lowered in inch. the guy i bought it from said it was done to adjust the angle of the driveshaft to compensate for the lift
If you want to get your ground clearance back, you could get a MML (Motor Mount Lift) for less than a $100. This would allow you to raise your skid plate back up to stock height.
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Old 05-06-2011, 06:16 PM   #5
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ken 1024 is right, they sell you a t case lowering kit with a lot of lifts.. but if you raise the drive train you dont technically need to do it but.. i got a question for you ken.. wouldnt that just raise the angle back up for the drive shaft because being a lift kit the axles are still going to be way lower than factory.. just curious
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Old 05-06-2011, 06:34 PM   #6
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ken 1024 is right, they sell you a t case lowering kit with a lot of lifts.. but if you raise the drive train you dont technically need to do it but.. i got a question for you ken.. wouldnt that just raise the angle back up for the drive shaft because being a lift kit the axles are still going to be way lower than factory.. just curious

I'm no expert, but I think lowering the skid plate keeps the transfer case more parallel to the ground and while bringing the height of the output shaft close to that of the pinion. Where as the MML more or less just raise the front end in affect clocking the TC so that the angle is better, but the height difference is still their. Both solutions reduce the vibration. I may be wrong, but that's what is seems like to me.
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Old 05-06-2011, 06:38 PM   #7
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I'm no expert, but I think lowering the skid plate keeps the transfer case more parallel to the ground and while bringing the height of the output shaft close to that of the pinion. Where as the MML more or less just raise the front end in affect clocking the TC so that the angle is better, but the height difference is still their. Both solutions reduce the vibration. I may be wrong, but that's what is seems like to me.
so which solution is more effective you think?
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Old 05-06-2011, 06:47 PM   #8
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ok cool what it sounds like to me, correct me if im wrong im no expert either, the t case drop will keep the factory height and angle of the drive shaft, (this is what i would do) the mount lift sounds like it tilts the drive line to angle the whole drive line to compensate a little bit of the angle that the lift made. it sounds fishy that way. i would probably as long as you have a two door, keep the t-case drop to keep from any sort of vibration or cocking the drive shaft in a wierd angle. the two door jeeps have a short enough wheelbase to go over some pretty tall corners mine is almost factory and it does great over tall mounds and rocks. also keep in mind the t-case skid plate is exactly that! as long as its not rusted or broken, that jeep can stand on just that skid plate(strong metal) i have hit mine before.. nothing happened!
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Old 05-06-2011, 06:55 PM   #9
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so which solution is more effective you think?
I agree with TJWrangler99. It seems to me that the MML would be less effective, because of the four transfer case bolts trying to pull the TC back flush mount to the skid plate. Of course I have no experience with an MML so if one of you more knowledgeable peeps want to chime in, this would be a great place!!!!
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Old 05-07-2011, 06:46 AM   #10
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Of note: With an MML you may also need a body lift.
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Old 05-07-2011, 07:08 AM   #11
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Well tummy tucking is a great way to get alot (1-3") of extra clearance on the underside of the Jeep. You will get hung up less and most aftermarket TT are far superior in strength and durability then that of the OEM.

Most of the time anyone going over 3" of lift should probably look to invest in a SYE and a CV driveshaft asap. While 4" and above of total suspension lift should be done as soon as the lift goes on to avoid driveline vibes. If not many people get spacers or "tcase drops" to lower the skid plate to allow the transfer case to have a tad bit better angle of the driveshaft going to the rear. When you do a tummy tuck keep in mind that you are lifting the transfer case 1-3" just like, its like adding 1-3" of lift. (since your axles stay the same position and the drivetrain raises thus needing proper driveline angles) so if you have anything above a 2" lift and do a TT, you will most likely need a SYE and CV

Stock height would be fine with a TT, but you will also need a 1" BL to raise the transfer case. This extra inch is to not be added to the total lift since it is lifting nothing but the body! Also since you are lifting the rest of thw powertrain, the MML would be a worthwhile install to pull that oil pan up and transmission pan!

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