JeepForum.com - Reply to Topic
Thread: 79 CJ7 Rear Driveshaft length Reply to Thread
Title:
Message:
Post Icons
You may choose an icon for your message from the following list:
 
 
 
   

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in










  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
04-05-2020 10:17 PM
CSP The 258 and 304 will use the same bellhousing. The T4 and T150 do not.
04-01-2020 09:04 AM
Allegan11 Sorry Gents. I'm in the midst of my 2nd rebuild. this consists of 2 79 CJ7s with 2 different engines and transmissions. My process of restoration is to collect and restore the pieces as I go. I was trying to find the drive axles ahead of time but through your explanations, I should just bide my time and get to that when I have everything put back together. Besides, I may find other problems or hurdles before I even get to that point of hooking up the drive train. Like, if I switch out a 258 for the 304, will the bell housing fit both engines and will it work for switching a t4 to a t150?

Thank you for making me step back and taking a more relaxed route.
03-28-2020 01:18 PM
CSP
Quote:
Originally Posted by Allegan11 View Post
CSP - I you read the initial post, it says that I don't have them and that all of the transmission components are separated from each other.
It actually says that they came separated. That doesn't mean you are missing components (other than driveshafts) and it doesn't mean they are still separated.

I assumed that you had installed these parts in the Jeep and could get a measurement. No need to make it a point of contention because I don't know exactly what your situation is and didn't give you the exact answer you wanted to hear. I made the suggestion I did with the thought that perhaps it was something you didn't consider or aware of. The intent was to be helpful.
03-21-2020 08:04 PM
StoneTower Lots of stuff can influence the length of the shafts. Change in axel, change in transmission, motor mount location if something was swapped, lift. Your best bet is to assemble the Jeep like you would have to anyhow and then measure and then purchase. If something is a little different than factory, you will be happy you did it in the correct order.
03-21-2020 05:37 PM
80cj
Quote:
Originally Posted by Allegan11 View Post
80cj - I can't measure between the yokes because all of the drive components are separated from each other. None of them are connected to the Jeep right now. Plus it didn't come with a front or rear drive shaft. I can get a used drive shaft (front and rear) for $40 a piece and they are OEM. I just need to know how long they are before I grab one off of FB marketplace.

CSP - My response should answer why I can't do what you think I should do.
Then perhaps you should assemble the transmission/transfercase then measure for the drive shaft. At least in my thinking that is the order in which things should be done. Or maybe you can make an agreement with the person who is selling those shafts that you have an option to return if they don't fit. FWIW.
03-21-2020 05:02 PM
Allegan11 80cj - I can't measure between the yokes because all of the drive components are separated from each other. None of them are connected to the Jeep right now. Plus it didn't come with a front or rear drive shaft. I can get a used drive shaft (front and rear) for $40 a piece and they are OEM. I just need to know how long they are before I grab one off of FB marketplace.

CSP - My response should answer why I can't do what you think I should do.
03-21-2020 04:50 PM
Allegan11 CSP - I you read the initial post, it says that I don't have them and that all of the transmission components are separated from each other. I have no way of measuring, but thank you for your well informed response. Besides, the reason I want the measurements is so that I can get an OEM drive shaft from someone in my area but can't because I don't know what to look for.
03-21-2020 09:19 AM
CSP Meausure what you have! There are shops all over the country that build driveshafts, so find a local shop or one of the many that you can find online that will ship anywhere. Any competent builder can take the measurement you get with it sitting at ride height and determine how long each of the components need to be as well as fully compressed/fully extended length.

With all of the truck traffic that goes through Cincinnati I'm sure there's at least one shop there that could build you something.
03-20-2020 01:24 PM
80cj
Quote:
Originally Posted by Allegan11 View Post
So I take it, no one actually knows the measurements of these drive shafts?
Why don't you measure the distance between yoke faces. That would be the running length. Collapsed length would be say 1 1/2" shorter and extended length that much longer.

Also, I sent you a link to Quadrates website where they list a shaft for your application. If it doesn't fit, send it back.
03-20-2020 11:15 AM
Allegan11 So I take it, no one actually knows the measurements of these drive shafts?
03-19-2020 01:24 PM
InjectedCJ7
Driveshafts

You should check out this guy on eBay. I bought both of my driveshafts from him for my CJ7. $150 for the front and $130 for the rear. Guaranteed not to break. Read his ad. I'm very satisfied with the product.

Regards,
John

https://www.ebay.com/itm/NEW-1310-JE...4AAMXQROxRe0ZC
03-19-2020 12:34 PM
80cj Quadratec has what you want built by Tom Woods
https://www.quadratec.com/products/5...m#&gid=1&pid=1
03-19-2020 10:05 AM
80cj
Quote:
Originally Posted by Allegan11 View Post
I find that the value of the CJ7 or 5 for that matter goes down depending on how much modifications are made to it. The more authentic and OEM, the more it's worth. Plus, a custom drive shaft is going to be upwards of $400 or more.
Probably less since this will be a shaft with regular U joints.
03-19-2020 09:53 AM
Allegan11 I find that the value of the CJ7 or 5 for that matter goes down depending on how much modifications are made to it. The more authentic and OEM, the more it's worth. Plus, a custom drive shaft is going to be upwards of $400 or more.
03-19-2020 09:51 AM
Allegan11 Great. first question is how long (compressed) is each drive shaft? Second, how much for each shaft? Shipping will be expensive I'm guessing.
This thread has more than 15 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

 
For the best viewing experience please update your browser to Google Chrome