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Unread 04-08-2013, 11:57 PM   #1
moparlover1992
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ujointed front driveshaft for 46rh

ok so heres the situation. ive got a 95 zj with a 5.2 and 46rh. ive spent more on the lifting part than ive planned but i want to do it right the first time(and its 18 years old and i live in a state where rust loves to live). anyway so im in the process of doing my IRO 3.5" lift(thought id do it while the jeep was on stands for the 242 transfer case swap) and i had previously picked up a ujointed driveshaft and yoke from a 4.0 zj with a 242 case in hopes of a direct swap to eliminate any issues the cv shaft would cause with the lift. well, got the yoke on and held the driveshaft up only to realize it is SHORT. since its in the air and not on the ground i cant say how much but its significant. further searching on here led me to some info saying that the 46rh is three inches longer than any other zj tranny. so got a quote to lengthen it....$200. well i dont have the money for that yet(have more necessary things to buy to get it on the road).so my question is does anyone know a specific jeep with the same type driveshaft(u joint at pinion, 2 ujoints at tcase) that is the length of the one in mine?? i really need a cheaper option. i saw someone on here posted specs of a wj shaft that was less than an inch shorter and the right style....has anyone swapped that shaft? keep in mind ill be at 3.5" of lift...if that shaft would work i could get one of those and rebuild it for cheaper....i did lots of searching on this and other forums and have not found any definite answers. if it comes down to it ill probably just take it on my trips with no front driveshaft(could someone confirm that this is ok since its a 242 case? im new to these cases but i dont see why it would be a problem just to leave it in 2wd all the time...) thanks for reading such a long post and for any help

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Unread 04-09-2013, 06:49 AM   #2
durango-bob
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You can leave it in 2wd and leave off the front DS - no problems.
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Unread 04-09-2013, 07:18 AM   #3
ratmonkey
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It's actually, 5.5" longer than any zj transmission.
Has the longest shaft of any jeep I know of.
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Unread 04-09-2013, 09:47 AM   #4
moparlover1992
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So do you have any recommendation of a shaft that will swap? Thanks for the replies both of you. I think most people just get a custom built one but I'm looking for a cheaper way
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Unread 04-09-2013, 10:16 AM   #5
Mickey_D
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Something to remember - when the axles are drooped, it actually shortens the length of the shaft. When the wheels are stuffed in the fenders, it lengthens the shaft.

Reverse thinking of a leaf sprung vehicle.

This is due to the radial distance of the control arms.
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Unread 04-09-2013, 10:07 PM   #6
moparlover1992
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Ok I appreciate that. So does anyone have any more info on the wj shaft that is the same type? Ex. Length, year, and drivetrain. I saw someone post about it in like one place but I think if it was an easy swap more people would do it instead of my custom shafts no? Maybe people like spending money more than I do...
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Unread 04-10-2013, 04:33 AM   #7
ratmonkey
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Quote:
Originally Posted by moparlover1992 View Post
Ok I appreciate that. So does anyone have any more info on the wj shaft that is the same type? Ex. Length, year, and drivetrain. I saw someone post about it in like one place but I think if it was an easy swap more people would do it instead of my custom shafts no? Maybe people like spending money more than I do...
If that post was recently, he was confused they're not the ones the wj guys swap with.
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Unread 04-10-2013, 01:33 PM   #8
moparlover1992
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Basically the post said there is a shaft that came in some wjs(don't know which ones) that is the double u joint at the time case and single joint at the pinion. That's the type I need. And it's supposedly only an inch shorter than the crappy cv one that was in my rig. But if it was that simple I think everyone would have figured this out by now. Lol. So is my only option lengthen the junkyard shaft or buy a custom one then?
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Unread 04-10-2013, 01:35 PM   #9
moparlover1992
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Srry transfer not time. Dang autocorrect
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Unread 04-10-2013, 03:35 PM   #10
ratmonkey
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Quote:
Originally Posted by moparlover1992 View Post
Basically the post said there is a shaft that came in some wjs(don't know which ones) that is the double u joint at the time case and single joint at the pinion. That's the type I need. And it's supposedly only an inch shorter than the crappy cv one that was in my rig. But if it was that simple I think everyone would have figured this out by now. Lol. So is my only option lengthen the junkyard shaft or buy a custom one then?
remove the cv yoke and you need another inch of shaft along with the extra 1" you already need.
the slip yokes on these stock shafts only allow 1.5-2" of slip. so one that is 1" too short is still too short by an inch.
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Unread 04-10-2013, 03:36 PM   #11
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Find a u joint driveshaft out of a 93-95 ZJ with the v8
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Unread 04-10-2013, 05:50 PM   #12
moparlover1992
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They did that? Thought all awd zjs had the CV shafts...
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Unread 04-10-2013, 06:12 PM   #13
sethwag
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really interested in this one, good luck with the swap and lift.
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Unread 04-10-2013, 07:35 PM   #14
ratmonkey
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Quote:
Originally Posted by dnuccio View Post
Find a u joint driveshaft out of a 93-95 ZJ with the v8
a couple might exist in the very early 93's, but the v8 got the cv shaft 99% of the time.
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Unread 04-10-2013, 09:28 PM   #15
dnuccio
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Quote:
Originally Posted by ratmonkey View Post
a couple might exist in the very early 93's, but the v8 got the cv shaft 99% of the time.
theres 3 of them that had it in a junkyard near me. can only tell by the yoke on the diff, the driveshafts had already been nabbed. too bad too, i need one
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