I like the look of the advanced adaptor SYE. Looks good for the price and will only be used for DD. The install though... that's gonna be fun..

 

I actually found the install of the actual SYE to be enjoyable, just get good snap ring pliers, taking the case out from under the Jeep was a pain, but some people do it with it still installed on the vehicle.

 

I have the AA SYE with Adams Driveshaft. Good choice!

 

I was told by a Crown Auto employee that they manufacture AA's SYE's.

I needed to swap TC's anyway, and am lucky to have a lift available so removal/install of TC was relatively easy. The installation of the SYE kit in the TC was straightforward, and probably a bit easier on the bench. I think I referenced Advance Adapters' video on Youtube.

Cheers!

 

For many of the answers contact XJWonders here on the forum by PM he installs and sells used TC's with SYE's installed and knowledgeable about them in general.