ceejay612

forgive my ignorance but what is the harm in skipping the sye and just throwing a front xj cv shaft on the rear?

ceejay612

Skreed

How would you attach the transfer case end of the drive shaft to the transfer case? Alot of people use a stock front shaft for the rear once a sye is installed. Hence the name Slip yoke eliminator. The yoke that inserts into the t-case is eliminated and a bolt on flage is attached to the input shaft of the t-case. There is a modified version using a slip yoke and a hack n tap kit that is shown on the gojeep website.

ceejay612

just like it sits in the front. the double joint to the slip yoke and the the other end to the rear axle. just as it is the U joints are all one size on the driveline i do believe.

i understand using a sye or hack and tap im just questioning why? why not only change the drive shaft seeing how that appears to be the desired end result by shortening the rear TC shaft.

Skreed

I'm not a 100% clear on what you are asking but this might help explain a little http://www.yuccaman.com/jeep/sye.html

If you are asking what I think your asking, can you just take a rear drive shaft and throw a double cardan joint on it? Yes you can. Why won't that work? It said the downward force on the slip yoke will cause you vibrations anyway and its useless.

Take a look at these two links for info about that kinda set up.

https://www.cherokeeforum.com/f2/sta...ck-n-tap-9337/

And

http://go.jeep-xj.info/HowtoSYEconversion.htm

ceejay612

that was the answer i was looking for. so even with a cv shaft the slip yoke is too long and will have downward force applied to it causing vibrations.

Skreed

That is what I have read thru research. I am no engineer so I dont really understand it completely but it makes sense.

84wagoneer

plus i dont think its safe or smart to run a slip yoke on the output shaft of the t-case, plus the slip joint in the driveshaft itself. seems like it would be fairly easy for the drive shaft to pop off and turn into a pole vault