T 18 Transmission in 79 cj5 - JeepForum.com
 2Likes
  • 1 Post By JERSEYJOE
  • 1 Post By JERSEYJOE
 
LinkBack Thread Tools
post #1 of 10 Old 10-17-2021, 08:03 PM Thread Starter
rkmellott65
Registered User
1979 CJ5 
 
Join Date: Oct 2021
Posts: 1
T 18 Transmission in 79 cj5

I'm just wondering I thought I was told one time at in 79 jeep only put the t 18 transmissions in 150 cj5's I'm probably wrong can some one help me out with this I got a 79 with a 258 and a t 18 Trans. Thank you

rkmellott65 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 Old 10-17-2021, 10:06 PM
Kilrain
Registered User
1979 CJ5 
 
Join Date: Mar 2003
Location: On the road to Shambala....
Posts: 267
Quote:
Originally Posted by rkmellott65 View Post
I'm just wondering I thought I was told one time at in 79 jeep only put the t 18 transmissions in 150 cj5's I'm probably wrong can some one help me out with this I got a 79 with a 258 and a t 18 Trans. Thank you
The 1979 CJs most definitely came with the T18A, there is the window sticker from mine:



This is additional info from Novak that I can confirm via the shift pattern on my 1979:

All Jeep CJ's from 1977 to 1979 had wide-ratio T18 with the 6.32:1 first gear. No front adapter plate is present on these models. 1976-1979 T18 transmissions can be adapted to GM V6 or V8 by use of a T18 adapter kit that we manufacture, kit #1879. Jeep CJ T18's from 1976-1978 may be cast with #13-01-097-907.

The 1979 Jeep CJ T18 is similar to the 1976-1978 versions, except that it features a wider front bearing and a different top cover with aluminum shift forks and a different shift pattern with reverse gear being over to the right and down. These T18's may have a case casting number of 13-01-065-904 and a top cover casting of #13-01-065-906.

1979 Jeep CJ-5 Golden Eagle, Morocco Buff, 258 L6, Howell FI, JeepAir A/C, T18, Dana 20 TC
Kilrain is offline  
post #3 of 10 Old 10-18-2021, 07:07 AM
JERSEYJOE
Registered User
 
JERSEYJOE's Avatar
1985 CJ7 
 
Join Date: Oct 2003
Location: Watertown
Posts: 337
T-18 in a cj 7

I beg to differ. the T-18 that came in all the CJ series had like a 4.21 FIRST GEAR. The T-18's that came in full size Jeep trucks had the 6.32:1 granny low first gear. Parts Mike makes a conversion kit to convert the Full size truck transmission for use in the CJ since the input shaft on the full size truck is twice as long as the CJ input shaft. I have done several on these conversions.
uptillnow likes this.

SPEED COSTS MONEY: HOW FAST DO YOU WANT TO GO?
JERSEYJOE is offline  
 
post #4 of 10 Old 10-18-2021, 07:24 AM
Matt1981CJ7
Registered User
 
Matt1981CJ7's Avatar
1981 CJ7 
 
Join Date: May 2011
Location: Elbert
Posts: 23,247
Quote:
Originally Posted by JERSEYJOE View Post
I beg to differ. the T-18 that came in all the CJ series had like a 4.21 FIRST GEAR.

Actually, I believe it was a 4.09 first gear. 2nd and 3rd gears were also numerically lower than T-18s with the granny low.

Matt


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Matt1981CJ7 is offline  
post #5 of 10 Old 10-18-2021, 07:41 AM
JERSEYJOE
Registered User
 
JERSEYJOE's Avatar
1985 CJ7 
 
Join Date: Oct 2003
Location: Watertown
Posts: 337
T-18

Matt I am sure that you are correct as I did not know the exact CJ ratios except that they were different. Thanks for the update.

SPEED COSTS MONEY: HOW FAST DO YOU WANT TO GO?
JERSEYJOE is offline  
post #6 of 10 Old 10-18-2021, 09:20 AM
JeepinGeo
Registered User
 
JeepinGeo's Avatar
 
Join Date: Aug 2020
Posts: 92
Many of these guys know more about this subject than I do and are actually the ones who helped me, but given that I just tore apart my T18 3 days ago for a $1 repair, I'll offer what I know. Jeeps from the factory in the years mentioned above, if paired with the T18, first gear was a 4:1 give or take first gear ratio. It was the Ford T18A that had the 6.32:1 first gear (the one I bought and adapted). Therefore, if it's factory Jeep T18, its likely to be the 4:1 ratio.
JeepinGeo is offline  
post #7 of 10 Old 10-18-2021, 10:55 AM
Kilrain
Registered User
1979 CJ5 
 
Join Date: Mar 2003
Location: On the road to Shambala....
Posts: 267
Here is the link to the Novak Conversions page about the T18. Pretty sure they are a trustworthy source regarding transmissions and such, which is why I cited them in my initial reply. Do with the information what you will:

https://www.novak-adapt.com/knowledg...manual/t18-t19

1979 Jeep CJ-5 Golden Eagle, Morocco Buff, 258 L6, Howell FI, JeepAir A/C, T18, Dana 20 TC
Kilrain is offline  
post #8 of 10 Old 10-18-2021, 10:59 AM
John Strenk
Moderator
 
John Strenk's Avatar
1976 CJ5 
 
Join Date: Feb 2005
Location: Shalersville Ohio
Posts: 22,906
That reminds me when people say they never put a T-177 in a CJ only T-176 although a lot of people find then in their CJ's anyway.

I'm sure they put in whatever was available. Just like Dana 44's in '86 Jeeps.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


I drive a Prius to save money and buy more Jeep Parts....
John Strenk is offline  
post #9 of 10 Old 10-18-2021, 11:12 AM
JERSEYJOE
Registered User
 
JERSEYJOE's Avatar
1985 CJ7 
 
Join Date: Oct 2003
Location: Watertown
Posts: 337
T-18

The finished product: Jeep J-20 T-18 with Scout Dana 300 transfer case, a direct bolt on no adapter
Attached Thumbnails
T-18 AND SCOUT DANA 300.jpg  
John Strenk likes this.

SPEED COSTS MONEY: HOW FAST DO YOU WANT TO GO?
JERSEYJOE is offline  
post #10 of 10 Old 10-18-2021, 11:18 AM
John Strenk
Moderator
 
John Strenk's Avatar
1976 CJ5 
 
Join Date: Feb 2005
Location: Shalersville Ohio
Posts: 22,906
Quote:
Originally Posted by JERSEYJOE View Post
The finished product: Jeep J-20 T-18 with Scout Dana 300 transfer case, a direct bolt on no adapter
Best of all worlds.... !!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


I drive a Prius to save money and buy more Jeep Parts....
John Strenk 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











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