Price: $200.00
Pros: it works
Cons: none so far
Recommended? Yes

Comments: works as it should and was an ease to install

Price: $249.00
Pros: Detailed instructions
Cons: none
Recommended? Yes

Comments: Easy to install, with instructions. I did mine without taking the whole transfer case out. Ensure that you get a good quality ring pliers, if not you will be cussing that you didn't.

Price: $199.00
Pros: Great products and simple.
Cons: None.
Recommended? Yes

Comments: It came everything what you need and Easy instructions. Great support service.

Price: $300.00
Pros: Easy to read directions and installaton.
Cons: None
Recommended? Yes

Comments: Excellent product with good directions.

Price: $375.00
Pros:  Came with the TC I got works well
Cons: NONE
Recommended? Yes

Comments: Got it already installed in a case I bought used, have had no issues with it whatsover..

Price: $200.00
Pros: A solid name
Cons: none
Recommended? Yes

Comments: Had this added in the shop, thought about skipping it but Im glad i didnt!!

Price: $210.00
Pros: Awesome ride, very good quality, worth the money no question
Cons: Pain to install
Recommended? Yes

Comments: Got the t-case from a friend for trade for my rifle, best trade ever made, Jeep rides so smooth now. A pain to get the tcase out on xj's but way worth it

Price: $240.00
Pros: reduces driveline vibration
Cons: you need a custom drive shaft
Recommended? Yes

Comments: easy to install the hardest part is getting the transfer case out of the truck.

Price: $200.00
Pros: comes what i need! Great instructions
Cons: NONE!
Recommended? Yes

Comments: Nice kit. No more vibrations and removed my transfer case spacers! I get to have more clearances!

Price: $200.00
Pros: Vibration is gone and my TC hasnt exploded like my last one
Cons: none
Recommended? Yes

Comments: After having a nasty vibration resulting in the explosion of my transfer case (and yes, it exploded in about a trillion pieces on the highway) I upgraded to a SYE and love it!

Price: $200.00
Pros: Not much to say, it works!
Cons: None
Recommended? Yes

Comments: Everybody with a lift should get a SYE. I didn't at first and had TC drop, which worked fine but I wanted to get rid of it ASAP. Advance Adapters SYE was highly recommended. Since the install I haven't had any problems; all the parts included seemed to be of OE quality or better. The install was pretty straightforward but the snap rings were the biggest PITA. The supposedly HD pliers from autozone are crappy at best so ended up using 2 screwdrivers to get the rings on and off. Also wear safety glasses! One of the old snap rings I was working on popped off and hit me in the forehead, would've really sucked if it hit my eye.

Price: $200.00
Pros: it does the job. Good price.
Cons: none
Recommended? Yes

Comments: I was told by a shop I trust, that they are pretty much the same... so I bought the AA SYE kit when it was on sale. It was half the price of any that I could buy at a local store, since I live in Canada. So, I picked it up when I was in the U.S.

Price: $215.00
Pros: Great, Looks Good, Smooth
Cons: Wouldnt do it any other way
Recommended? Yes

Comments: Great, Looks Good, Smooth. Dont know how much kit was, it was a gift. Professionally installed at transmission shop, buy one in the first place rather than a T Case Drop, youll be happy with it.

Price: $320.00
Pros: SYE & rebuilt shaft all came from Carolina Driveline. These guys are top notch with high quality products for very cheap!!! Save some time and go there first!
Cons: directions were ok....could have been written for a more novice guy and I think about anyone could do the job.
Recommended? Yes

Comments: I bought my kit from Carolina Driveline. Kit included the Advance Adapters NP231 SYE Kit and rebuilt custom length high speed balanced drive shaft.

Very complete, high quality high grade parts. The directions and pictures could be a bit better in clarity. All black and white makes it tough there, but very good stuff none the less.

Price: $200.00
Pros: good instructions
Cons: wasnt free
Recommended? Yes

Comments: Pretty Smooth Installation. No problems as of yet. would reccomend

Price: $200.00
Pros: This is IMO a must for any NP231J
Cons: none
Recommended? Yes

Comments: 32 spline output shaft is much better than stock, this is a must IMO. You don't have to buy Advanced Adapters but just get one for piece of mind.

Price: $1.00
Pros: 
Cons: 
Recommended? Yes

Comments:

Price: $199.99
Pros: Easy install
Cons: None
Recommended? Yes

Comments: Works great

Price: $199.00
Pros: eliminated vibrations
Cons: hard to find rear seal
Recommended? Yes

Comments: i bought mine used and am having trouble finding a rear seal for it. other than that i am more than please. it was easy to install without instructions i might add and it adds a bit of strength to the rear output shaft.

Price: $200.00
Pros: great
Cons: none
Recommended? Yes

Comments: not bad to install, really just had to take my time installing it. had it for a few years now. great to have.