Conversion >> T-19
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.
Generally, Wranglers, Cherokees, etc. with the
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.
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
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.
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.
The ultimate low buck, junk yard, bolt in swap is the Scout T-19
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.
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.
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
Ford T-19: Ford used the T-19 in trucks from the mid 70s until the
IH T-19: International used the T-19 in Scouts and IH light line
trucks from the mid 70s until 1981.
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
Ford T-18: Ford used the T-18 in trucks from the mid 60s until the
IH T-18: International used the T-18 in Scouts and IH light line
trucks from the mid 60s until 1974.