Make your own cv drive shaft - JeepForum.com
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post #1 of 19 Old 04-11-2009, 07:49 PM Thread Starter
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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post #2 of 19 Old 04-11-2009, 07:52 PM
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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post #3 of 19 Old 04-11-2009, 08:00 PM Thread Starter
dirtyd5
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Thanks for the info>
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post #4 of 19 Old 04-11-2009, 08:19 PM
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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post #5 of 19 Old 04-11-2009, 08:51 PM
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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post #6 of 19 Old 04-12-2009, 09:29 AM Thread Starter
dirtyd5
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I'll try to find one thanks.
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post #7 of 19 Old 04-12-2009, 01:34 PM
elks96
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So any year of XJ will work?

1985 CJ 7 258 bored/Cammed, MotorCraft Carb, Mallory Ignition, NP435/Dana 300, 4.5 RE Ex, 1.25 JKS Body Lift, Detriot AMC 20 Rear(detroit locker and Warn Hub Conversion), Herculined Tub, Chevy Heater Blower, 34" Swampers, Custom Rear Bumper, more to come....

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post #8 of 19 Old 04-12-2009, 02:57 PM
JeepnBlake
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not all of them are cv

you basically just have to crawl under and check
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post #9 of 19 Old 04-12-2009, 02:57 PM
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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post #10 of 19 Old 04-19-2009, 05:47 PM
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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post #11 of 19 Old 04-19-2009, 06:32 PM
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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post #12 of 19 Old 04-19-2009, 07:06 PM
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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post #13 of 19 Old 04-20-2009, 03:22 AM
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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post #14 of 19 Old 04-20-2009, 12:47 PM
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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post #15 of 19 Old 04-20-2009, 02:54 PM
BIG REED
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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

'77 CJ-7, AMC 360, t-18a, soa
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