|
From JeepTech and JeepTech Publishing LLC, the Jeep knowledge base. |
| All text is available under the terms of the GNU Free Documentation License. |
|
Table of contents |
|
1.1 New Process 1.2 Dana 300 1.3 Dana 20 1.4 Dana 18 1.5 Scout Dana 300 |
Options
There is overlap between the life of Borg-Warners heavy duty four speeds, but basically the T-19 followed the T-18. The T-19 was the first one to offer a synchronized first gear. Typically, this meant that first gear wasn't as low. The exception to this rule was the rare wide ratio T-19 used in IH trucks. Wide a close ratio versions of the T-19 were used in IH trucks, so most T-19s in IH trucks are not the wide ratio version. The T-19 was also used in Ford trucks.
The input bearing retainer size (4.85") and often the input shaft length is compatible with the bell housing used with the T-150, T-176, T-5, T-4, SR-4 and of course Jeep T-18. The input shaft length varies depending on the application, but the shaft can be cut and resplined or an input shaft of the appropriate length can be installed. If this transmission is to be used with a Jeep Dana 300, it is easiest and cheapest to buy a 2WD Ford version. The 4WD IH version should be bolt compatible with a Dana 20 or Dana 18, but input shafts are typically on the long side.
New Process
Generally, Wranglers, Cherokees, etc. with the NP-231 or NP-207 transfer case will be best of converting a 2WD Ford T-19. A special bell housing can be purchased or a CJ bell housing can be used (some modifications may be necessary.) It might be best to take the opportunity to upgrade transfer cases for Wranglers with the NP-207.
Dana 300
CJs with the Dana 300 are also generally best off converting the 2WD Ford T-19. Often, the stock bell housing can be used or modified to work with the Ford T-19.
Dana 20
For CJs with the Dana 20, it really depends on on what can be found at what price. The Scout T-19 may be the best option, but it is hard to find. It might be better to convert a Ford T-19 and swap in a Dana 300 to get a better low range.
Dana 18
Things get much more complicated for people with a Dana 18 Finding bell housings that are compatible with the T-19 for engines used 1971 and earlier can be extremely difficult. A special bell housing may have to be purchased. If you have a Buick 225 V6 or are planning a Chevy engine swap, most likely it would be better to go with a Chevy transmissions.
Scout Dana 300
The ultimate low buck, junk yard, bolt in swap is the Scout T-19 and Scout Dana 300. Problem is the wide ratio Scout T-19 is very rare and the Scout Dana 300 almost as rare. It isn't likely someone is going to sell you these parts cheap if they know what they are.
T-18 Swap Stories
It seems there are an infinite number of ways you can get a T-18 in your Jeep. Here are some articles on common T-18 swaps:
Swapping a CJ T-18 into a CJ: Kirk Beasley tells us how to swap a CJ T-18 into your CJ. Detailed descriptions of the parts you need to do the swap.
Swapping a Ford T-18 into a CJ: Steve Smith swaps a Ford T-18 into his '83 CJ-7. Swapping a Ford T-18 into your 80s CJ will give you a tremendous improvement in reliability and performance.
T-19 Identification
The T-19 has been used in Fords and International Harvesters. The following articles cover some things to look for to find the T-19 you need.
Ford T-19: Ford used the T-19 in trucks from the mid 70s until the mid 80s.
IH T-19: International used the T-19 in Scouts and IH light line trucks from the mid 70s until 1981.
T-18 Identification
The T-18 has been used in Jeeps, Fords, and International Harvesters. Since T-18s were used in so many different trucks, it can be a bit daunting to go out and find one. The following articles cover some things to look for to find the T-18 you need.
Jeep T-18: The T-18 was used in '72-'79 CJs and full size Jeeps until 1981.
Ford T-18: Ford used the T-18 in trucks from the mid 60s until the mid 80s.
IH T-18: International used the T-18 in Scouts and IH light line trucks from the mid 60s until 1974.