Easiest granny 4 speed to use with 258 and dana20

Uh, not quite right. Ford and Jeep cases have different bolt patterns on the front and rear. A Jeep T-18 adapter can be used on the rear but 6 holes must be drilled and tapped on the back of the case and the lower left stock Ford output hole must be plugged. The Ford case and input can be easily used to an AMC motor by using the T-150/176 bellhousing which allows it to bolt right up. The later SR-4, T-4, T-5 bellhousing can also be used but some holes must be drilled and tapped in the bellhousing. Good news is the bosses are cast in already so strength is not an issue. Nickmil

 

If the T-18 is the early version ('72-'76) it will have an adapter about 1" thick on the front, or should have. You want the adapter with the trans as they can be hard to come by. These use a stock T-14/T-15 bellhousing and the vast majority were 4.03-1 first gear. The late '76-'77 to '79 version did not use an adapter on the front but had a special bellhousing that was the same depth as the T-150/176 bellhousing but with the Jeep T-18 bolt pattern on the front. It's a special bellhousing used for that application only, and if that's what he's got, you need the bellhousing too or you are going to have to do some modifications. You can easily tell this trans from the others as the input shaft had a long skinny pilot area on the tip of the shaft just like a T-150. Shift pattern had nothing to do with gear ratio.
Nickmil

 

I'm waiting on some pics from him but sounds like the bellhousing is on it. Sounds like it's the 76-79 version as well, did all these have 6:32 1st? I just wana make sure this is the right one, a buddy of mine is going to pick it up so I don't even get to see it tell it's home
Thanks!

 

Yes, the close ratio T-18 was gone in Jeeps after 1976 (although all sorts of weird setups show up in Jeeps).

The nominal year range for the close ratio transmission is '72-76 according to the factory literature, and wide ratio is nominally from '77 to '79. Nick's post says the wide ratio showed up in late '76, which I don't dispute.

 

Thanks!

 

You should have your buddy spin the tranny in all gears while listening and feeling for problems. While he spines it in first, have him count the revolutions. As mentioned earlier in this thread, 6.3 revolutions of the input shaft should equal 1 revolution of the output shaft. Better yet would be to pull the top cover and visually inspect all the gears and count teeth. This, however may be more than he is willing to do.

 

If it does not come with a bellhousing, the T150 is eaisly adaptable. You just need to drill and tap one hole.

I think I got all the parts to swap in a CJ T18 in place of a T150 from Parts Mike for under 30 bucks. Including the pilot bushing and the stud needed to install in the bellhousing.

 

Well he called back, has like 28 spline output shaft. Guess I'm looking again.

 

I checked and I dont' see anything that has a 28 spline output shaft. Several have a 23 spline output shaft.

Can the dude selling the tranny check for any numbers on the case? A t18 should have something like a 13-01 and a 23 spline output shaft.

I would't consider this a dead issue. I'd just make sure you identifyed it before you bought it.....

 

A quick Google search shows a 28 spline T-18 as a Ford transmission.

A 23 spline Jeep T-18 would be from a '80-up J20 AFAIK, and it uses a fairly long TC adapter.

 

Also possible it's from a Ford 4 wheel drive. The bellhousings are easy to confuse between some Fords and AMC as they are both round engine to bellhousing bolt patterns. If stock CJ then it would have to be a 6 spline output. Could be a later one from a Jeep truck or Waggie that used the 208 transfer case. Like Aallison said, that would be a 23 spline output IIRC.

 

Pardon me while I split a hair or two

After 1979, the cast iron Borg-Warner transmissions were gone from Jeeps except for the wide ratio T-18 in the J20 (3/4 ton pickup).

Wagoneers, Cherokees and J10s (1/2 ton pickups) got the T-176, not the T-18. The Cherokee optionally got the 258/T-5 for a couple years. All these transmissions were used with the NP208, drivers side drop.

 

Thanks for the heads up Tim. I've converted so many of these T-18's to 23 spline for the Dana 300/ 231, 241, etc. that's what I'm probably thinking of. You're right, the 1/2 tons did use a T-176, and the V-8's had a long input shaft and adapter similar to what the T-18's used in the trucks with V-8's.
Thanks for the clarification...

 

Yep it was from a 2 wheel drive ford.