For everyone that has a 3.5" lift, I'm looking at Rubicon Express 3.5" Full Rear Leafs and was wondering if you had to put a Tcase drop or SYE on. I plan on running 31s if I go with this setup, thanks.

 

Its really just going to depend on your rig. Some of then do and some dont. I say lift it up then see. It's not going to hurt driving it around while you wait on one to be shipped to you.

 

I have a RE 3.5 superflex. I had to have a TC drop installed, my drive shaft was so bound up the jeep couldn't be driven with out it. I have a SYE that I'm going to be installing soon.

 

No, for a 3.5" lift no sye is needed. I'm running a 4.5" lift and I don't even need an sye.

 

Do you have a tcase drop?

Thanks everyone. Also I get random vibes at 55 moh exactly. No more or no less... Should lifting it properly fix them or is there something that's loose? I want to fix it. It's not death wobble but definitely significant.

 

x2 its gonna depend on your rig. The later models seemed to be more senstitive to lift than the older ones. My 98 shook like hell when I put the lift on it. A TC drop fixed it

Also, a lot of folks consider the TC drop a temporary fix for the drive line angles created by the lift. It does solve many of the vibes, but by dropping the TC it puts added stress on the mounts.

 

I have an '01. And yeah I plan on doing an SYE id vibes occur, but I'm in the process of choosing a 3.5 or 4.5 lift with 31s... I was hoping a pro to picking 3.5 would be a saved $200 on sye and driveshaft.

 

I'm not running the T-case drop either, no vibs. have you balanced your tires?

 

It varies from one rig to the next.

I suggest installing the kit and taking it out for a ride and see if you feel it.

 

I'm only going to buy it if it has vibes. No tcase drop for me. But I need to be able to drive for several weeks until it ships - I do over 30 miles of highway each day.

 

I think it depends jeep to jeep I had a xj 4.5 and no vibes just installed a 3 in rough country n I get lil vibe is definitely go with a t case drop tho u won't need an sye

 

I've got the RE 3.5 superride with full leaf packs. No TC drop or SYE, I've got some moderate vibrations at around 33-38 MPH but that's all. Works fine for what I want.

 

The thing about a tcase drop is I hear it wears your joints a lot quicker. More of a bandaid than a longterm solution.

 

Oh really I never heard that , what if u use it as a cheap buffer n save for an sye. Like I'd get the lift n judge from there since its a small lift you know

 

I got 3 n I get it at like 25-28 but hardly noticble n my last with 4.5 had the tcase drop n only vibe was death wobble Haha so awesome mobile massage chair