Argo, if a 4spd is attached to a Ford 6 or 8 and has a cast iron case and an aluminum top with the shifter sticking up from it, I think it has to be the np435 - the t18 and t19 had cast iron case AND top. I believe all three have a PTO port on the pax side, and the t19 has another on the driver's. The np435 has a 6.68 granny, the lowest I know of on a ford 4spd. Granny is NOT synchro'd - it and reverse are sliding-gear (?). If you need a synchro granny - I don't mean to judge or second guess your want for it, but I use my t18's granny almost every day and I'm not at all bothered by the lack of a synchro. If you can't get it into gear at stand-still, try putting it into one of the other gears first and then shifting to granny without releasing the clutch. You can also try gently playing with the clutch (starting from fully depressed) as you apply light pressure on the shifter. I use that last technique constantly in big trucks. Both of these were essential in my first car, a '60 falcon with 3spd crunch-o-matic.

 

Dave-

I gotta go with Hedgeapple on this one. They are NP 435's.

 

Hmmm... the gears are turnin'... I can drive a non synchro tranny, as I have done so before. The reason I want a synchro on first is because I want to ditch the M5OD, replace my 3.55:1 rear end gears with 2.73:1, and A) still have a better final drive ratio than OD and 3.55s with an M5OD, and B) still have a lower combined first gear than the M5OD and 3.55s. I figured out that an M5OD with a 3.55:1 geared final drive has an overall first gear ratio of 13.85:1, while a wide ratio T-19 with 2.73 gears will have a a first gear ratio combination of 17.25:1. Also, the M5OD with 3.55 gears has a final ratio of 2.84:1, while the T-19 would have 2.73, for better fuel efficiency. By being synchro'd, I could use Lo as first gear, thereby allowing me to get the better wide ratio spread, the better high gear, the better low gear, and the tougher box. BTW, not to doubt you, but I had heard that the NP-435s were almost always used in 4x4 applications. Thanks for your input.

 

There's no need to come to a complete stop when shifting out of first gear in a non syncho tranny. You just can't downshift until you stop. I have an np435 tranny, it's a great gearbox, but an OD on it would be nice.

 

Argo-

I just picked up an NP435 from a guy at work (ok, I haven't actually gone to get it yet). It was out of a 2WD Ford, behind a 390. Yeah, no problem upshifting from first with no synchro. That would only be an issue if 2nd also had no synchro, then you'd have to double clutch, or speed match your shifts to avoid the clutch (like a semi). BTW, if you have or have occasion to drive a diesel pickup with a manua tranny, don't play super trucker and shift without the clutch. You can do it, but the synchro's won't take it (for long).

 

Oh, I know not to flat shift a synchro'd tranny. As for shifting up, that wasn't my concern. Downshifting was, and although I can do that, I'd prefer to have a synchro. Doesn't mean that I won't go for it, as I might. I might just grab them both, since they are only about $65 a pop. I have to compare second gear ratios between my M5OD with 3.55:1 gearing and the NP435 second gear with 2.73 gears. It might be close enough to not worry about hitting first gear to begin with, since I never need first gear unless I am at a dead stop, and even then, I don't really need first unless I'm on an uphill grade, so being able to downshift to first might not matter, since I may not need it. After converting to the NP435, if a T-19 comes available, it would be easy to switch over to it.

 

OH yeah, I forgot to say this morning. The tail housing on a 2WD version of the NP435 is different than the 4x4 version.

Check out novak adapters website. They seem to specialize in adapting things to Jepp, but they have a great knowledge base page. You can choose frommutliple trannies for information on them.

 

Hedgapple,
Right, right, right, right. So OK, now whats a ZF? (I come to this forum just to stay humble and associate w my betters).

 

Eclectic -

ZF is a brand of tranny. Ford used it in the 3/4 and 1 ton's, as opposed to the NV4500 that GM and Dodge used. I suspect that this was a sourcing decision, based on contractual agreements. ZF is/was big on European cars, as BMW and Ford stable mate Aston-Martin use it.

Anyway, even though your set-up (most likely) has a hydraulic clutch, the swap shouldn't be bad, as long as you get the correct bell-housing. Hydraulic clutches are nothing new, as we have a 1960 Chevrolet grain trcuk at home that has one.

 

I've just realized Ford had 4spds with hydraulic clutch from '84-'88, more or less, so you should be able to find a bellhousing and slave cylinder for a swap.
If you don't need overdrive, I'd sure consider a 4spd. Any of them are supposed to be cheaper to buy, maintain, and repair than the ZF, and stronger and more reliable, too. The NV4500 is also supposed to be better, but I've heard they have a nut that likes to come loose, leaving you with 5 different ratios of neutral and a repair bill.
I want to swap a 4spd into my '77 F250. I'd like an overdrive, perhaps an Advance Adapters unit (.78) or a Spicer 3spd (2.0/1.0/.80) aux box from an old GMC/Chebbie medium duty truck. The spicer's 2.0 low could be very useful on the farm. The Spicer is a separate unit; I'd remove the carrier bearing and its crossmember, build a new, stronger crossmember, and mount the spicer to that. Don't know how I'd handle the shift linkage.

 

Don't need an overdrive? What? You just can't be too rich or have too many gears. The best tranny I ever drove was something called a Spicer 4X4, 2 sticks, gawd I loved it. My ideal truck would have about 7 (gears), 2 low's and an overdrive that is only usefull going downhill. I've considered options like finding an old Columbia 2 speed rearend or even an Eaton if I could find one to fit. But I was worried that the Columbia wouldn't be tough enough and the Eaton wouldn't be practical (yeah like the Columbia would be). However the too rich part keeps getting in the way. Sooo if a 4spd will do the job I have to give way to the most economical, and easiest, solution. Anybody got a 4spd? That t18 sounds about right. Now if I put bigger tires on the rear.......

 

Wanna drive to Kansas? I'm picking up the NP435 today.

 

I bought a T19 transmission today at a local junkyard ($150). It came from an '84 F250 with a 460 gas engine (with ?27,513 miles). I want to know if there is away to find out what is the ratio for the first gear (4.02, 5.11 or 6.32). I really want to get a close ratio T19 (with a 4.02 first gear). Some of the transmission case markings read T19-148, 13-09-065-911 Borg Warner. The door sticker lists a code Trans=P. Thanks for any help figuring out what I have before I spend money fixing some minor details and maybe even refreshing it with new synchros and gaskets and such.
By the way, the darn transmission almost gave me a hernia. I had to get the help of another guy to put in my truck's bed (even between the two we puffed). I figure it easily weighs way over 150 pounds (even with the bellhousing off).

Raul

 

Just put it in first gear and turn the input shaft. Count how many times the input shaft needs to turn before the output shaft turns once. That will tell you the first gear ratio. Do the same for second and third, and reverse. This will give you an idea of the ratio package (e.g. 4 rotations would equal a 4.02:1 first gear ratio, etc).

 

Great post thank you very much! Just the info on the T19 I was looking for. Thanks again!