hey guys! ive broke more stuff.
my transmission went out monday it was an new process 4 speed (3 with OD not sure of the model). Its in a 4x4 reg cab short bed truck with a 4.9. im going to switch to the borg warner T-18 or T-19. what other parts will need to be changed to fit the different trans? i was under the impression ith will fit up against the same bell housing and transfer case but im not 100% sure.

Also what trucks can i pull that trans out of? Whats my year range, motors, must it be 4wd, and must it be short bed reg cab?

 

The t18 output shaft is different lengths from 4x4 to 2x4 so you will need a 4x4 model. if its behind a 302, 351 or 300 it will physically bolt to your 300.

It doesnt matter if its a long bed or short bed the tranny is the same. You may need to move or change your transmission cross member. I'd change your clutch plate out while your in there and get one that matches the year of truck you pulled the tranny out of.

I dont know about the transfer case

Also What year is your truck? If it currently has a hydraulic clutch that may make things more difficult. I dont know if the t18 ever came with a hydro clutch.

 

It won't matter if the OP's truck is hydraulic or mechanical, so long as his bellhousing is separate from his transmission. To switch to a T-18, he'll need the transmission, the cross-member, and maybe another transfer case.

A 4-speed overdrive transmission is not a New Process 435. If you had a New Process, you wouldn't be going through this problem, as a New Process won't simply break. You have to be really abusing them to damage them.

Chances are, you've got an SROD (single-rail over-drive). They were known to be a light duty transmission that wouldn't stand up to heavy use.

The question here is whether or not the SROD had a non-integral bellhousing.

EDIT:

From what I can see, the SROD didn't have an integral bellhousing, so the OP should be able to measure the spacing of the bolts that hold the transmission to the bell housing and see if a T-18 is a direct bolt in fit. It should be.

 

And if the bells are the same depth from tranny to engine. Dont know if they are or not.

 

Any Ford transfer case will bolt up to any Ford 4x4 transmission, so there won't be any problems there. Like others have said, the wheelbase and powerplant of the donor truck won't matter either as far as the actual transmission is concerned. The seperate bellhousing will have to be from a truck with a 300, 302 or 351w.

Any 4x4 NP435 or T19 will work for you

 

i'm still not sure on what it is. I have been hard on it and i don't know the mileage so i wouldn't rule it out from breaking. i do now have pictures of the numbers on the side if that helps with anything(ii gonna try to upload them). And its an 86 model. the ford guy said it may be a Clark which has something to do with borg warner(this is second hand so im not sure of this info).
still i dont know what i should do.

 

isn't the SROD a 5 speed? and i think i've give it enough hell to kill a new process.

 

86. and it does have a hydro clutch.

 

Whats wrong with the M5OD? I know everyone says its "light duty" compaired to a zf but I dont think it would be a bad tranny for occasional towing (keep it out of overdrive) and its a 5 speed with a hydro clutch.

 

prefer to go with the t-19. I do a lot of off roading and when im on road I run it hard. I've herd the 5 speed is sort of weak but really I have no way to know. the current trans is a 4 speed and 4 th is overdrive and I still have no clue what it is.

 

The SROD is a 4-speed.

Let's identify what you have first, before we go about seeing what we need to replace it.

What is the transmission code on your driver's side door jamb sticker?

Which direction is reverse with your shift lever? Is it all the way left and forward, or is it all the way to the right and down?

Anything will break with enough hard use, but it has to be sustained abuse to really do much damage to a T-18/T-19 or a NP435. True, you can ruin the shift forks, wear out syncros, burn up bearings, etc. But most of the time you can still limp the truck home or partially drive it. These old top-loader 4-speeds with the granny gears are tough as a brick outhouse. That's why they're preferred for offroaders.

If you're going to put in a T18 or a T19, go for the T19. They used the T18's in F150s and they have an un-syncronized 1st and reverse gear. The T19 was used in the 1 tons because they have syncronized gears and are easier to shift. They're also a little closer ratio, but still have a good deep 1st gear. T19's also have dual PTO ports.

EDIT:

Going back and thinking about what motor you have and the fact that it's an F150 4x4 like mine, it's very possible you do in fact have a New Process or T-18 already. Like I said, let us know the transmission code and which direction reverse is on your shifter and we can tell you what you've got.

Also, being the fact that it's a 4.9, your transmission may not have overdrive. Your truck is probably like all the other 300-6 trucks like mine and others here and it has a set of high geared differentials. My truck has a 3.08 rear and 3.07 front, so 4th is LIKE overdrive, even though it's a 1:1 ratio. The granny gear with my New Process makes up for lack of gearing in the differentials.

 

well i cant currently look at the door code because its at the mechanics and they're closed today and truthfully idk if it'd be right because it reads the truck has a 302. its been engine swapped. reverse is to the right and down. i know its not a t18 because my buddy has one in his 83 and they're geared nothing alike. i was able to limp to the mechanics and when i looked at it after they dropped it the teeth on first were chewed up. 3rd is the 1:1 and 4th is a little higher. 4th gear in my trans is very high. they think that its a Clark which Ive never known of in these trucks. i have the numbers off of the transmission itself if that would help any. ive tried to post the pictures of the numbers in an album to put a link up but i keep having technical problems.

thanks for all the help!

 

B-but T19's came in many ratios... :)
http://www.novak-adapt.com/images/gr...ecs_gasket.gif
Learn how to tell one from another if you get serious about buying a T19?

Gear ratios...
1st 2nd 3rd 4th 5th -R-
T18 ========== 6.32 3.09 1.69 1.00 === r7.44
ZF M5OD-HD ==== 5.72 2.94 1.61 1.00 0.76 r5.24
Mazda M5OD-R2 = 3.91 2.24 1.49 1.00 0.80 r3.39
NP435 ======== 6.69 3.34 1.74 1.00 === r8.26 <--checkout the NP435's reverse :)
E4OD ========= 2.71 1.53 1.00 === 0.71 r2.18
Clark282V =====- 6.99 4.09 2.17 1.17 1.00 r5.89
NV 4500 ======= 5.61 3.04 1.67 1.00 0.73 r5.61

Alvin in AZ

 

They did put a Clark 4-speed overdrive in these trucks. If that's what the mechanic identified it as, I'd just go with that for now. At least until you're able to tell us the transmission code.

And you're right, a T-18 is geared much deeper. A New Process is geared even deeper than the T-18s. However, both have unsyncronized 1st gears and reverse gears, and can be a pain to shift into sometimes if the gears are worn. Even worse, you can't shift into them while moving unless you double clutch. And, you normally drive with 2nd through 4th. This is why I suggest finding a close-ratio T-19. You'll get a lower than normal 1st gear that's still useable for everyday driving and it's synchronized in all forward gears.

Depending on what your rear and front differential gears are, you may or may not want to put in a T-18/T-19. If you've got 3.55 gears, you'll see a gas mileage hit. If you've got 2.73 - 3.08 gears, you'll still get good gas mileage.

 

That sounds like my transmission. I have the codes from the trans which would you need? Theres a riveted on tag on one side and the molded numbers on the other. From the way it sounds the t-19 is the one i want. my rear is a 3.08 and thats why i wanted the "granny gear." Will the t-19 bolt in right where the clark came out or will i have to change anything?
Thanks man thant info helps alot!!!