Original cj drivetrain - JeepForum.com

 
LinkBack Thread Tools
post #1 of 4 Old 07-13-2013, 03:39 PM Thread Starter
buckspacj
Registered User
 
Join Date: Jul 2013
Posts: 9
Original cj drivetrain

I'm gonna buy a cj soon not sure what year.
80% on 20% off road
Want the 304 engine
What auto tranny option did 304 come with over years ? If I have to settle for 3 speed manual tranny will it do 65 on highways sitting on 38"s? I guess I'm asking what tranny options do I have for 304 in auto or manual for my needs? Thanks needs9

buckspacj is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 07-14-2013, 12:27 PM
DaemonForce
Registered User
1983  
 
Join Date: Jun 2013
Location: Centralia
Posts: 138
Garage
I know that between the 258 and 304 the transmission options typically interchange for manual gearboxes. As for autos, the Chrysler A-904 and A-998 were not an option behind V block engines but they might have been in much earlier designs of my car. Not sure if there was an issue that carried over with the Jeeps too. I think the A-727 and A-999 were okay but I don't know about that last one since the ID sounds pretty strong considering the mess of things at that time. You'll typically see 4 and 5 speed manual gear boxes of the Borg Warner variety but I think Aisin Warner took over during the 4.0L period.

You might be able to use an AX-15 if you ever find one. If you find an SR-4, junk. Other than that, I think you should be able to keep axles and push 65 on the freeway pretty easy. If you're concerned about overdrive I would suggest swapping out differential gears for something higher or only using 5 speed manual transmissions. You're just not going to find a 4 speed auto for this thing without a lot of work. It might still exist in some Dodge with the A-512 or 42RH tag or something like that but I'm part of the group that doesn't consider the 700R4 an option and I don't know anything about the TH400 to help with those either.
DaemonForce is offline  
post #3 of 4 Old 07-16-2013, 07:13 PM
paveland
Registered User
1986 CJ7 
 
Join Date: Nov 2008
Location: Tokyo
Posts: 40
Th400 was a stock option, I think it was usually paired with the full time quadratrac transfer case.
paveland is offline  
post #4 of 4 Old 07-17-2013, 05:36 PM
jeepdaddy2000
Registered User
 
jeepdaddy2000's Avatar
1971 CJ5 
 
Join Date: Jan 2002
Location: Eagle Point
Posts: 7,136
Quote:
will it do 65 on highways sitting on 38"s?
I would become an expert on driveline geometry and steering upgrades before I contemplated purchasing a CJ with 38" tires.
jeepdaddy2000 is offline  
Reply

Quick Reply
Message:
Options

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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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
Trackbacks are Off
Pingbacks are On
Refbacks are On

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