NSG370 6-speed swap

[Seagulls n Eagle]

Well, I love the idea of the 6-speed but don't think I have the time to fit it.

Is it true the shifter comes up in a different location?

I'm going to have to "shift gears" and try to the ax-15 or T-5. What makes the ax-15 a better swap?

Another question, is the transmission crossmember different for manual vs the automatic? If they are different could the automatic be modified?

It thay are different  be on the hunt for one of those.

Thanks for the I put.

[mudkicker715]

they are different crossmembers.

[jpgreen]

I only had to modify the pre-existing auto tranny shifter hole slightly(to the back and way off to one side (jeep tranny centered and eagle off-center). The auto crossmember wasnt even close, if you did modify it that much it would just look like .

[carnuck]

AX-15 is stronger than T5 by about 1.5. There are different T5s and the Eagle and CJ ones are NOT the World Class version. I doubt they are even as strong as the Turbo 2.3L  Mustang, Cougar and Tbird version.

There are 2 different Jeep AX-15s as well. The TJ version has the shifter further forward and tcase is tipped differently too.

[DownwardFlame]

I'm curious how similar the cases are between the AMC t5 and the world class. How many parts are interchangeable? Maybe you could build one with the eagle case and world class internals?

[carnuck]

There is no WC T5 4x4 output shaft or it would've been done by now. The $3K price wouldn't stop the serious offroaders

[Seagulls n Eagle]

Well,

Im really up in the air on which way to go.

I have a line in an 2005 nsg370

1998 Cherokee ax-15 flywheel starter ect

And tracing down a t-5, flywheel starter ect

I'm willing to get into some fabrication
Not I don't want to get to far in over my head.

The rest of the swap (pedels, master clutch cylinder ect)
Seams easyier.

I would like to keep the factory console,

I would prefer to avoid touch extra costs with drive shaft lengths,

How much is involved with the ax-15

Jeep bell housing? It eagle housing?

Piolet bearing seems to have an answer.

Ax-15 do you need drive shaft lengths?

Ugh, just the lead up to the swap is work.

Thanks to all who have posted.

[captspillane]

I'm curious how similar the cases are between the AMC t5 and the world class. How many parts are interchangeable? Maybe you could build one with the eagle case and world class internals?

Its been done. A guy in northerneaster PA used to sell reman units and you could buy it already worked up as a "World-Class." There was a really good write-up on the process that I have saved somewhere and I remember that there was one small detail that could not be upgraded, but most of the stuff was possible. I'm pretty sure they bored some bearing retainers to a larger size and did some other magic.

My opinion is that the T5 is perfect behind a stock engine, even up to a 304 V8. It shifts rather smoothly and has very little inertia, so it is fun and fuel efficient. Very easy to rebuild and cheap to find. If you want to upgrade over 200 HP or if you want to beat on it or tow, then the AX15 or even better the NV3550 is a good choice. The NV3550 is much stronger than an AX15 but it is feels rather clunky in comparison.

It doesn't make too much sense to put so much time into a T5 because even the world class ones suffer from distortion of the housing. Its just too puny in size to keep from flexing. Of course you can buy the really rigid really expensive aftermarket housings but that's just not cost effective given all the other choices out there.

[Seagulls n Eagle]

Thankyou captspillane

You have givien me the little bit of guidance  I needed to point me in a direction that I can accomplish

It's been a more difficult task funding a t5 than the nsg370 it the ax15.

I'm sure that one will show up.

Are there years or engine sizes that don't swap between eagles?

I came across a 5speed from a 4 cyl that was listed with the notes  vin "u" only

Does that mean there were 5 speeds that were only for the 4 cylinders?

Correct me if I'm wrong but I understand that the bellhousing are 4speed  and 5speed specific.

If anyone has a line on a 5 speed set up, I'm looking.

Thanks again to all

[Seagulls n Eagle]

Hi

I'm curious about the parts I'm going to need for the bell housing and transmission.
As I understand it (as I start my journey on learning about my eagle)
That the 4-speed bell housings bolt are different than the 5.

I'm going for a manual because I much prefer them to autos and for fuel economy.
Its going to be my daily driver so I need to be able to aford to drive it.

So I'm down to finding the bell housing, slave cylinder, clutch through out bearing,
Transmission and cross members. Going with a bolt in for now is going to be helpful.

Any ideas on easy alturnitive sources for a t5 that could be bolted up,

I've read about other cars, other AMC models, mustangs, derangos, and more with t5's but not much about how to prepare one to bolt in to eagles with there transfer cases.

[carnuck]

SR4/5 is the only 4 or 5 speed only bells that I know of. T4/5 bells are the same. AX-15 has a 4 cyl (in Dakotas only with AMC 2.5L ) and a 6 cyl bell. (they also have a Toyota bell and some other motors) The most common 4 cyl trans in Jeeps other than Eagles is AX5 which wouldn't stand up to the 4.0L (I thought it was dumb they stuck them on the 2.1L turbo diesel in XJs!)

I would definitely go for an AX-15 over the others.

[Seagulls n Eagle]

Thanks sounds good

Seems as if the ax-15 is easier to get than anything else.

I've been doing alot of digging but I'm still kind of unsure of some things.


If I were to put and ax-15 in an eagle

How much fabrication is needed for the rear crossmember?

Will a 229 (with a properly clocked tale housing for speedo)

Would drive shaft modifications be required

How about the bell housing/flywheel? Both from the jeep?

I guess last question what year jeeps would be the best donners?
I thought I heard about the shifter not located properly for some.

I'm looking forward to the swap. I'm prepared to pull the intake and exaust manifold
(Need to replace broken exaust manifold)

I'm going to pull the power brake/master cylinder assembly because its goin to help with master clutch cylinder w/remote resivoir install.

Then I'm going to pull the transmission and transfer case out.

Hope to get all that done in the next 5-days.

Thanks for the help and guidance! Love this forum. Love my eagle!!
Great to be back in the AMC game.

[captspillane]

No, the bellhousings are not different between 4 speeds and 5 speed Eagles. Those would be SR4 in 1981, then T4 in 1982 up with the T5 as an option.

I put a T5 from a 6 cylinder into a 4 cyclinder SR4 spot. I included the entire clutch system. The bulge of the fifth gear covers two holes so they used a single threaded bolt on the T5 where the SR4 used to have two through bolts. That was literally the only difference between them externally. You do not even need to remove the bellhousing or disturb the clutch to make the swap. Four bolts slides the input shaft out and then the new input shaft slides in. Done.

Avoid the SR4 like the plague.

Remember that if you have automatic driveshafts they won't work with a T5. You're better off with an AX15 or NV3550 because it matches the same length as the old auto trans.

You can use an AX15 or NV3550 behind a T5 bellhousing. That is the easiest way to install one, and is necessary when you use an AX15 behind an AMC V8 or in a Jeep with mechanical clutch linkages. My CJ8 has this style of install with an NV3550, which is backwards compatible with the AX15 except a very small detail that doesn't effect the adaptor. Advanced Adaptors makes an adaptor plate that goes between the bell and the trans to make up for the 3/4" difference in input shaft length. Splines are the same. Nose diameter is different. You can actually use the same old 4.2L flywheel, starter, clutch plate, throwout bearing, and clutch mechanism. Only this simple adaptor plate and a different crank bushing changes.

[captspillane]

This is a good post to read about someone who has already done what you want to do. There is a couple things that he did the hard way of doing, especially his speedo cable, but all around he did it as cheaply as anyone could have possibly done it.

http://forums.amceaglesden.com/index.php?topic=21335.new#new