rockcrawler1981

My wife has 2010 JKU and im about to change axles but i have some questions.
1 What is the spline count of the front and rear transfer case output shafts?

2 What is the output shafts diameter?

She is still driving it so i can't check for myself. Here is some of the parts I'm using
-85 HP 60
-88 gm 14bolt
-Artec oneton swap kit
Thanks

Answer in post 10

Invest2m4

Specs are listed somewhere on the Atlas website. That said, when you order new driveshafts, just tell them you need yokes for a stock JK t-case.

rockcrawler1981

thanks i will check that out. i am planing on making my own shafts and thats why i need the info. think about it if the yokes are common you could get them from a junk yard for cheap instead of paying 100 each.

rockcrawler1981

bump i looked at advanced adapters website all it gives is the input spline count

rockcrawler1981

bump bump

Twinkydog

It's a 32 spline output.

rockcrawler1981

thank you. 32spline is great that means the flange yoke off a np208 should work. will post back to confirm

Twinkydog

Just make sure it is machined for the o-ring to go in. I don't know if all of them have it, but ours does.

rockcrawler1981

ill take a look i have access to a lathe so thats no problem

rockcrawler1981

32 spline is 32 spline. You can use any 32 spline yoke from lots of junk yard transfer cases- NP208, NP241, NP205, and so on. That means 1310, 1350, 1410, flat flange yokes are available for cheap or next to nothing. This also means the drive shafts can be sourced from the junk yard too.
A few important facts

*The yokes use different seals so you will have to find the right seal. National Seal has all their seal info on there website as do other manufacturers . The best case way to find the seal is
1 find the jk seal specs
2 measure the donor yoke this is the shaft size. You can also look up the year, make, model of the donor t case
3 you may need to turn down the yoke to the right size for the seal, I did.

*You have to remove some of the spline material on the yoke about 3/8". So the yoke will slide over the output shaft just after the splines end in the t case. You can do this many ways die grinder worked for me.

*The JK yokes use a large oring to seal the nut, yoke, and splines together. Just use silicone instead of the oring.

*Check the stock JK nut fitment inside the yoke, you may be need to clearance them.


My setup im running is
*TCase 2010 JKU stock 241
*Front yoke mid 80's chevy NP208 front flat flange yoke
*Rear yoke mid 80's chevy NP205 1350 yoke
*Front drive shaft stock chevy front drive shaft
*Rear drive shaft chevy 1350 shaft cut down
*front axle 90 ford hp Dana 60
*Rear axle 04 chevy 10.5 14bolt