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Unread 04-11-2009, 07:49 PM   #1
dirtyd5
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Make your own cv drive shaft

Hey I just installed a spring over in my 82 cj-7. I want to install a rear cv drive shaft, but a lot of people these days I,m on a budget. can I use or modify a cv drive shaft from another truck?I have a front drive shaft from full size blazer and it looks like it would work if I shorten it.Have any of you done this?And where is a good inexpensive place to shop for drive shaft parts on line?

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Unread 04-11-2009, 07:52 PM   #2
sweetguardian00
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i took a front grand cherokee driveshaft for my rear driveshaft, look around for machine shops in the area, i had Long Plain Machine to mine, but Maine is a little far from Acushnet, MA
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Unread 04-11-2009, 08:00 PM   #3
dirtyd5
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Thanks for the info>
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Unread 04-11-2009, 08:19 PM   #4
foggybottombob
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I used front XJ shafts for the front and rear drive shafts on my SOA CJ. But I had to get the lengths changed at a local drive line shop.
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Unread 04-11-2009, 08:51 PM   #5
JeepnBlake
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i have the xj shaft on the rear of my soa 78 cj7, remember you will have to get cv style yokes for your transfer case
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Unread 04-12-2009, 09:29 AM   #6
dirtyd5
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I'll try to find one thanks.
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Unread 04-12-2009, 01:34 PM   #7
elks96
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So any year of XJ will work?
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Unread 04-12-2009, 02:57 PM   #8
JeepnBlake
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not all of them are cv

you basically just have to crawl under and check
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Unread 04-12-2009, 02:57 PM   #9
BESRK
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I've shortened/lengthened a few driveshafts before. I used a couple "V" blocks to set the tubes in so I could spin them and check runout with a dial caliper to keep them straight. Once I got a lathe, it was even easier.. plus the lathe makes it easy to cut out the old welds..

However, if you don't get them straight, you stand a very good chance at having some bad driveline vibes. If you've any doubt, take it to a shop and pony up a few bucks... especially if it's going to be a street driven rig that will see any highway speeds.
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Unread 04-19-2009, 05:47 PM   #10
T3hRustyWalnut
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I've been checking out this thread I Just recently did a SOA on my 79 CJ7. I got a front driveshaft from a XJ. Now what is the difference in yokes? I have a T18 trans with a Dana 20 tcase. The yoke is the type that uses a U bolt shaped clip to attach the universal. I looks like i can attach the XJ's driveshaft with no problem. Is there some sort of clearance issue that would require me to get a different tcase yoke?
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Unread 04-19-2009, 06:32 PM   #11
dhubing
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I used the front shaft from a 90s model Explorer. I also had to get the CV Yoke for my D300 (bought it at Tellico4x4.com).
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Unread 04-19-2009, 07:06 PM   #12
JeepnBlake
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rusty you'll need a different yoke specifically for a dana 20,

link:

http://advanceadapters.com/product/2...0-CV-Yoke.html
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Unread 04-20-2009, 03:22 AM   #13
JavaTee
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Quote:
Originally Posted by T3hRustyWalnut View Post
Now what is the difference in yokes? The yoke is the type that uses a U bolt shaped clip to attach the universal.
The yoke that you need is a little longer so you can get the 4 bolts in through the back of the yoke to hold the driveshaft in place. You will not use the u-clamps on this shaft.
Later, T.J.
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Unread 04-20-2009, 12:47 PM   #14
T3hRustyWalnut
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Quote:
Originally Posted by JavaTee View Post
The yoke that you need is a little longer so you can get the 4 bolts in through the back of the yoke to hold the driveshaft in place. You will not use the u-clamps on this shaft.
Later, T.J.
I kept all the hardware from the donor XJ. The bolts that mounted the driveshaft to the tcase actually can fit through my yoke I currently have on my tcase I have now.
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Unread 04-20-2009, 02:54 PM   #15
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i used a grand wagoneer front shaft and the front t case yoke from a j-10 (i would think it would have been the same yoke on the gw, but it didnt have a t case in it - hence the j-10)

Quote:
Now what is the difference in yokes?
as for the gw driveshaft - the stock dana 20 yoke bolt holes didnt line up with the threaded holes on the driveshaft
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