Advance Adapters Drive Shaft Angle Reduction Kit (Slip Yoke Eliminator) Reviews, Ratings, Specs & Prices
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Advance Adapters Drive Shaft Angle Reduction Kit (Slip Yoke Eliminator)

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Product Information

MSRP: $57,567.00
Average Price: $835.87
Manufacturer: Advance Adapters
Yes: 111 / No: 0

Reduce driveline vibration on lifted vehicles with this Heavy Duty Slip-Yoke Eliminator Kit for Jeep's NP231J transfer case. Transfer case tailshaft length is reduced by 6.5" on '97-'01 Wranglers and 4.25" on '88-'95 models resulting in improved driveline angles. Kit includes a redesigned transfer case mainshaft which is not only shorter but has an 18% larger spline diameter, a 54% increase in torque capacity.


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Registered User
Babablackjeep's Reviews
02-05-2015, 06:53 PM
Price: $200.00
Pros: Great fix for the vibrations! no more vibes:)
Cons: none
Recommended? Yes

Comments: Solid piece of metal, only problem i had was getting the speedometer to seal properly. Drips a few drops of fluid every time drive but I will get another seal and install it. hopefully that'll fix it. Over all good buy tho

Registered User
SilverXj01's Reviews
10-02-2014, 06:39 PM
Price: $200.00
Pros: Tough
Cons: None yet
Recommended? Yes

Comments: Did the job for me and so fars a tough addition to the already tough xj

Registered User
whalejr31's Reviews
07-18-2014, 01:17 PM
Price: $440.00
Pros: simple install durable
Cons: not a super short
Recommended? Yes

Comments: Purchased through adams driveline in las vegas the price is with a driveshaft

Registered User
mtramme's Reviews
03-15-2014, 10:58 AM
Price: $260.00
Pros: Necessary for lifts >3"
Cons: Snap rings are a PITA
Recommended? Yes

Comments: Supposed to be the "cream of the crop." Snap rings were a PITA, but otherwise straightforward installation and runs great.

Registered User
wusmc71's Reviews
10-12-2013, 08:40 PM
Price: $290.00
Pros: great
Cons: none
Recommended? Yes

Comments: does the job, no vibrations on 3.5 inch lift

Registered User
ALFDMAX's Reviews
10-06-2013, 05:14 AM
Price: $199.00
Pros: Easy to instal, eliminate shaft angle problems and vibrations
Cons: none
Recommended? Yes

Comments: A good SYE kit and with reasonable price, complete and easy to install, good installation instructions are provided with it.

Registered User
tyler_lapointe's Reviews
09-25-2013, 10:37 AM
Price: $700.00
Pros: smooth ride came as kit with CV Driveshaft
Cons: costly, need adjustable control arms
Recommended? Yes

Comments: while this is a mod no one wishes that had to pay for as its a bit of a design flaw on jeeps part, it does do an amazing job of giving you the smooth ride for your jeep you are looking for no matter how lifted you are.

Registered User
exige05's Reviews
04-21-2013, 05:33 AM
Price: $200.00
Pros: it works
Cons: none so far
Recommended? Yes

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

Registered User
osprey710's Reviews
03-27-2013, 11:39 PM
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.


Registered User
survivor's Reviews
03-25-2013, 09:31 PM
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.

Registered User
thunderstar99's Reviews
12-19-2012, 10:49 AM
Price: $300.00
Pros: Easy to read directions and installaton.
Cons: None
Recommended? Yes

Comments: Excellent product with good directions.

Registered User
DevilDogDoc's Reviews
11-10-2012, 10:46 AM
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..


Registered User
JohnyJeep's Reviews
09-04-2012, 06:41 PM
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!!

Registered User
Pinkfuzz's Reviews
04-17-2012, 07:43 PM
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

Registered User
Darkwing_duc's Reviews
04-16-2012, 02:51 PM
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.


Registered User
survivor's Reviews
03-16-2012, 11:58 PM
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!

Registered User
NickM2828's Reviews

12-07-2011, 12:20 AM
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!

Registered User
irocz3489's Reviews
10-05-2011, 09:32 AM
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.

Registered User
Jeeper1973's Reviews
08-10-2011, 02:44 AM
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.

Registered User
boeingxtreme's Reviews
07-03-2011, 06:33 PM
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.

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