Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: grayspeed on November 29, 2010, 10:35:56 PM

Title: xj/yj transfer box swap?
Post by: grayspeed on November 29, 2010, 10:35:56 PM
Has anybody swapped an xj full time 4wd t/box into a yj? Be nice to have a centre diff......
Title: Re: xj/yj transfer box swap?
Post by: daggie on November 30, 2010, 06:41:52 AM
not on a yj, but yes on a zj 2.5 td, manual, works a treat :003: :icon_jook:
Title: Re: xj/yj transfer box swap?
Post by: ivanidea on November 30, 2010, 09:59:55 AM
I thought the reason why swb jeeps didn't have full time 4wd was because they were too short. 

The full time 4wd transfer case is too long to work in a wrangler, since the rear shaft would have to be very short and at a steep angle.
Title: Re: xj/yj transfer box swap?
Post by: Panic mechanic! on November 30, 2010, 12:29:20 PM
don't beleive it is too short , have read on jeep forum about a few people dropping  cherokee's gearbox's and transfer cases into tj's to get the overdrive and help the mpg. so don't see why it should not fit a cherokee might just take some work with plumbing the electrics in.
Title: Re: xj/yj transfer box swap?
Post by: Panic mechanic! on November 30, 2010, 12:34:50 PM
think you need to swap the whole lot.
http://www.stu-offroad.com/engine/aw-4/aw-4-1.htm (http://www.stu-offroad.com/engine/aw-4/aw-4-1.htm)
Title: Re: xj/yj transfer box swap?
Post by: wildwood on November 30, 2010, 02:31:49 PM
Can you get a SYE for the cherry transfer case??????????  That willl be key to the success.......or not
Title: Re: xj/yj transfer box swap?
Post by: daggie on November 30, 2010, 02:50:52 PM
its a hack and tap sye
if you use a later facelift 242 its easier and cheaper
this is an early 242
http://www.angelfire.com/nc3/84jeepxj/sye.html (http://www.angelfire.com/nc3/84jeepxj/sye.html)

search for sye
Title: Re: xj/yj transfer box swap?
Post by: Mike Pavelin on December 01, 2010, 09:56:39 PM
You'll lose the vacuum switch that engages the axle disconnect.
Title: Re: xj/yj transfer box swap?
Post by: grayspeed on December 01, 2010, 10:18:38 PM
You'll lose the vacuum switch that engages the axle disconnect.

Won't be missing it, as it doesn't work now!

After reading a lot of the yank sites I believe it isn't a problem to swap the boxes. I think the next step is to put the two next to each other and work out the differences and find a SYE.....
Title: Re: xj/yj transfer box swap?
Post by: JamesH on December 02, 2010, 11:14:47 AM
Rubicon Express Hack & Tap SYE on my XJ 242 transfercase