I just bought a 4.5 rubicon express lift. It came with a transfer case drop kit but i dont think that is the healthiest thing to do. I plan on buying a SYE. Should I get the rubicon express hack and tap sye or the iro hack and tap sye. Also I have been talking to a friend and they said I can take the front drive shaft out of a zj and that will take care of the driveshaft problem. And last question is, Rubicon Express Monotube or Bilstein monotube. Thanks.

IRO, yes and Bilsteins.

so the front drive shaft out of a ZJ will help with vibs? nothing else needed?

I planned on doing the SYE and the zj drive shaft

cost or the IRO DYE and ZJ driveshft?

IRO hack n tap= $99 plus shipping, Grand cherokee front DS $30-50 at a junkyard. A brand new custom DS will be pricey, probably around $250.

Having a used DS rebuilt is pricey so make sure the jy DS is in good condition. When I got mine I didn't have much to choose from and figured it would be cheap to get rebuilt. Nope.

So using a front zj ds is a common thing and trusted? Also would all of you recommend bilsteins over re monotubes. What bilsteins would go with a rubicon express 4.5 lift?

Wait but I have a 4.5 lift. And those shocks say 3.5 to 4.5, isn't that kind of pushing it?

Nope, not at all.
They are the correct shock for you're lift height.

You can always remove your existing shocks, flex the suspension (fully) and measure the extended and collapsed lengths, then order based on those dimensions.

Do you offer free shipping?

Not on the shocks.

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Hey Thanks Serious Offroad, I will be ordering from you here shortly. Bilsteins for my jeep for 312 shipped with the cherokee forum discount. Cant pass up that deal, Thanks!

Last night I started my IRO SYE (hack n tap). I have a 5 speed Cherokee with 6.5" lift and being that the manual trans is shorter than the auto, I could not cut nearly as much of the shaft as you typically would, which didn't bother me.. I drilled from the factory hole on the end of the shaft in about an inch, then cut the shaft about 3/8" off. This aligned my shaft so I have enough spline engagement on the driveshaft slip. At full flex and full droop I still have plenty of room, at full compress I still have room to spare. Everyone told me a front shaft wouldn't work...I guess they just always followed the directions 100% and cut too much off the shaft.. Either way, the end of that shaft must be hardened. I had to use carbide drill bits to dig at it, and that took forever. After I got about 3/4" past the end, drilling got very easy. I'll finish tapping it tomorrow night and throw it all together.