divorce t case?

[jonsranger]

hey guys, i got a 90 ranger with a 302 and a mustang world force t5, and i was wondering if i could just mount the t case right behind the 2wd t5 and just hook the output shaft of the t5 directly to the input of my np 205, maily cuz i cant afford the advance adapter part if they still have it. the truck is a single cab short bed and was 2wd, it will be hooking up to a 9 in and a d44. any ideas please let me hear them.

thanks,
Jon

 

[gotmudd]

depends on a couple of things1)how much room do you have for a drive shaft between the tranny and transfer case, mine is roughly 26-28 inches, not sure if you want to go shorter because it has a slip joint, which brings me to point (2) do you have a bolt on u-joint flange on your tranny as well as your transfer case, those are a must have item, because the driveline between HAS to bea slip shaft for movement and flex. and obviously you will have to shorten your rear driveshaft.

 

[jonsranger]

i was thinking of mounting it directly behind the t5 and getting a pipe or something and just have it splined to each side, then put some kind of shield over the area so no junk gets in there.

 

[gotmudd]

i was thinking of mounting it directly behind the t5 and getting a pipe or something and just have it splined to each side, then put some kind of shield over the area so no junk gets in there.

dude, what part of needing a slip shaft driveline don't you understand? the purpose of the slipshaft is to allow for movement between components, namely your tranny and transfer case.the minute you climb or put your truck in a bind you will get one of two things either you will destroy the tail section of your tranny or the input of your transfer case, your choice. go look at how the older fullsize fords and chevy trucks with divorced transfer cases are set up, they have a slipshaft driveline between with u-joint's on each side. if ford or chevy either one thought they could get away with a solid splined shaft they would have done so. the reason they use the slipshaft[ in case you didn't understand the first time] is to accomodate for movement of the frame when you are offroad and to allow for minor height variations between tranny output and transfercase input, thus the need for the driveline to be able to collapse on itself and the use of u-joints to allow for minimal height height differences. if you haven't seen a true divorced set up let me know and i will post you a picture of my set up[ which is typical of older fords.

 

[jonsranger]

well i no what a slip shaft is but i didnt think it would matter if i mounted it diretly behind the trans, like as in no more than 1 in behind the end of the trans, but i have never seen a divorced set up before, just bad pics online.

 

[gotmudd]

well i no what a slip shaft is but i didnt think it would matter if i mounted it diretly behind the trans, like as in no more than 1 in behind the end of the trans, but i have never seen a divorced set up before, just bad pics online.

i don't know if these are any better but one shows the connection at the tranny and the other shows connection at the transfer case. sorry for being hard on you, just don't want you to tear up our stuff, you sound as broke as me , mine is @24 inches yoke to yoke, although you may be able to shave some considerable length on the male side of the shaft, by cutting it 2 inches in front of the male splines and have a u-joint flange re-welded, then you'd only have @16-17 inch shaft. but i don't know what kind of room you have to work with and you'd have to fab mounts for the t-case and you'd have to come up with frame insulators, cuz you can't hard mount the t-case to the frame because of vibration.

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[/IMG]also i should point out that my output on my tranny and the input on my transfer case are both bolt on flanges

 

[blackbronc]

"do you have a bolt on u-joint flange on your tranny as well as your transfer case, those are a must have item, because the driveline between HAS to bea slip shaft for movement and flex."
Nonsense. You can use a slip yoke in the trans with 2 regular u joints and make an even shorter shaft between the trans and t case. Doesn't matter where the slip is but you do need to have it. A simple splined coupler would self destruct due to deflection and distortion though. The Datsun/Ranger in my avatar had a slip yoke C4 with a 7" C-C cardan jointed shaft to a floater md.20 T case and it worked fine. I built it in 1980, 3 years before Fords Ranger. I drove it daily for about 14 years with no problems.

 

[gotmudd]

"do you have a bolt on u-joint flange on your tranny as well as your transfer case, those are a must have item, because the driveline between HAS to bea slip shaft for movement and flex."
Nonsense. You can use a slip yoke in the trans with 2 regular u joints and make an even shorter shaft between the trans and t case. Doesn't matter where the slip is but you do need to have it. A simple splined coupler would self destruct due to deflection and distortion though. The Datsun/Ranger in my avatar had a slip yoke C4 with a 7" C-C cardan jointed shaft to a floater md.20 T case and it worked fine. I built it in 1980, 3 years before Fords Ranger. I drove it daily for about 14 years with no problems.

you need to re-read the OP's post, he has a t5 tranny, which if memory serves is a MANUAL transmission, i could be wrong, but i don't think they made manuals with a slip yoke. if they did however, your set-up might be better cuz he can get an even shorter shaft, if space is an issue. all i know is that if he plans on doing alot of flexing and frame twisting he'll want that shaft, no matter where the slip is, to be able to have at least a couple of inches to slide. too little and the shaft will pull out of the tranny to long and it will bottom out, taking a bearing with it

 

[Captain Ledd]

Most of the 2wd tranny's I've seen are Slip yoke. All 2wd T5's I've ever seen have slip yokes, Even the Rangers M50D the 2wd Versions are slip yoke. The T18 in my Ranger used to be a 2wd and had a slip yoke output.

Single cab, Short bed eh? I'd take some measurements of the space you have behind your transmission output and your Gas tank. You might need a Passenger drop unit. If it drops on the Drivers side yo may run into issues with it hitting the gas tank. Just make sure it's clocked enough to let your exhaust through. How much lift are you planning on running?

You do need some sort of shaft between the 2 cases though, but it doesn't have to be a whole lot, since you already have the slip yoke in the tranny you'd only need a 3"-4" driveshaft (u-joint to u-joint, yeah, it's pretty short) to make it work. Just enough to take the bind out of it when the frame flexes. It will have more bind on it Than a longer shaft, but consider how much the frame is going to actually move between those 2 points, combined that it's essentially in the middle of the frame (an imaginary pivot point if you will imagine), that shaft will not need to move a whole lot, but it does move. The second you exceed the steel/aluminums elastic range (very very very small) with a directly coupled shaft, you break stuff.

It's definitely doable though.

 

[blackbronc]

you need to re-read the OP's post, he has a t5 tranny, which if memory serves is a MANUAL transmission, i could be wrong, but i don't think they made manuals with a slip yoke. if they did however, your set-up might be better cuz he can get an even shorter shaft,

You could be wrong. Not trying to be a dick just clarifying the facts. As Captain Ledd states most 2wd trans are slip yoke. The exceptions usually being HD trans manual or auto in fullsize trucks. With them frequently the front half of the 2 piece driveshaft has no slip yoke at all letting the carrier bearing support handle deflection and putting the slip yoke in the rear half of the driveshaft. Virtually ALL passenger car trans are slip yoke. T5s being mostly designed for and used in Mustang/Camaro are 99% certain to have slip yokes.

 

[gotmudd]

yeah, i wasn't sure, that's why i prefaced with " i could be wrong" . i haven't delt too much with manual trannies in cars, last one being 10-15 years ago

 

[jonsranger]

ok well my t5 5 speed manual trans has a slip yoke i have a slip yoke that goes with it, it just has the 2 ears for a u joint, theres not a bolt on flang, my np205 i cant remember what it has because im not at home, i am planning on a 3 in body lift, it is about to get a 9 inch out back when i get back home, its in the bed of my dd right now, i am planning a solid axle swap for the front if i can get a good deal on something. So what everybody is saying is that there has to be flexibility between the trans and tcase, were i got the solid idea is from a 4wd trans because the tcase bolts right up. So apperently i can just use the slip joint i already have and i need to get something for the fron of the tcase, and have a short, like 4 in, driveshaft made to go between the 2. Also that i will have to fab up a mount system for the t case using rubber mounts. if i left out anything let me know, and if there are anymore pics of mounting one up and he drive shaft id like to see them.

Thanks
Jon

 

[Captain Ledd]

sounds like pretty much it. Though this brings up another question, is the np205 set up for divorced use?

They're fine if they bolt together (as in literally bolted to one another), because the bolts carry the stress, not the shaft. The forces are spread out to the outer end of the case by the lever effect (bolts are further out from the center), basically when thery're solidly mounted together and twisting forces or just about any other force for that matter is transfered through the case itself (much stronger than the shaft). If there was just the slip shaft between the 2 (directly coupled) all of that would be sent to the shaft where it'll easily bend it out of round (vibrate, eat bearings and kill seals) and thus disaster ensues. I think thats explained right...

Currently the slip shaft you have the T5 will work perfectly, you just need the other section of deiveshaft and hook it up together. Don't worry about a flange on the transmission side.

So apperently i can just use the slip joint i already have and i need to get something for the fron of the tcase, and have a short, like 4 in, driveshaft made to go between the 2. Also that i will have to fab up a mount system for the t case using rubber mounts.

Bingo. You are on the path to victory.