np205 divorced behind 2wd C6

I've got an 83 F-250 I've been wanting to swap to a 4x4, and I'm planning on running a reverse shackle leaf spring setup on a dana 60 in the front, but am unsure about what i want to run as far as transfer cases. I plan on running 35s at first with the possibility of going up to 38-40 inch tires later on. I am interested in running a divorced np205 but haven't seen any information on a swap for this yet. I like the idea of shifting the front and rear axles independently with a twin stick shifter, and also like the idea of being able to keep running a 2wd c6 which is subsequently cheaper if I need a new one.

Is it worth going this route? or would I do better to just get a C6 married to a np208 or a bw1345/1356?

Even though I have torn down a c4 and rebuilt it, it has been a long time and I would rather not replace the output shaft on my c6, and I'm better at welding mounts up anyhow.

Anybody here done this on an 80-96 F-series?

Right now I'm really just doing research, this will have to be a winter break project but I would like to get my ducks in a row before I begin.

p.s. I don't care about the high gear ratios of the np205 too much as this will be primarily a fun mud truck and daily driver/tow vehicle as well, and rock crawling never appealed to me anyhow.

I have broken 2 208F cases with my truck the has a power glide in rough mud holes they just want hold up i hit a hard hole and the cases just keep spilting in half. I changed to a 208C case all i did was turn it up side down and change the front yoke with the one off of the 208F case and the chain in the 208C is a little stronger then the chain in 208F. I my other 2 trucks i am running a c-6 with the 205 case you can pick them up at a junk yard for not much money.

i have a 94 f350 crew cab on rockwells that i run the factory bw case and then i run a divorced np200 t case. the np200 is really close to the 205 except it has 2 rear outputs. i run it vertical to help eliminate driveshaft angles. i dont have any pics on this computer, but if you send me a pm i will get you some off my work computer tomorrow. my truckis sitting on 17 inches of lift and 44 boggers. i also do truck tug of wars with 35 inch drag slicks all around.

i really like the divorced case setup. i run one in my mud race truck its a pro fab with a 12 inch drop with quick change gears. i run a built 2wd trans in it, its cheaper and easier to pull if needed.

there's so many advantages of the Bw's over any of the options. IMHO
lighter, less oil, stronger, lower ratio...
Also, depending on your wheelbase and lift a divorce mount may make for pretty steep rear dshaft angles.

i have seen lots of long bed trucks with divorced cases. ford used to make some f250s in the 70s with a divorced case, although i am not sure on the years. ran a divorced 205. i als have a ford divorced t case thats not a 205, it only has 2wd/4wd and nuetral no low range.

oh yea and what diggindeeper said about the bw t cases, i have put a ton of abuse on mine and its still going strong with 209,000 miles.:D

i didnt know if you had a long bed. thats no problem witht he divorced.
if you're looking to do some crawling you can double a 203 and a 205.

There is a tech special on mounting a np200 divorced case in the mud life magazine in the aug and sept. addition. May give u you some pointers.

Well looks like I will elminate the 208 unless i find one for a screaming deal. It is a long bed regular cab truck, so it is probably on the border line for wanting to use the divorced case but it sounds doable considering they came from the factory that way. Ill be on the lookout for a transmission with a borg warner/205 or just a divorced 205.

Does anyone have any good luck with a 203/205 doubler? Not really necessary for me but id like to entertain the idea anyhow.

I HAVE AN 88 F-250 THAT I DID THE DIVORCED CASE DEAL ON,ALSO IS A 2WD C6.ITS A LONG BED REGULAR CAB..WORKED OUT PERFECT! I USED A DANA 24 CASE CAUSE THATS ALL I HAD AT THE TIME(SAME MOUNT AS A DIVORCED 205)

I HAVE AN 88 F-250 THAT I DID THE DIVORCED CASE DEAL ON,ALSO IS A 2WD C6.ITS A LONG BED REGULAR CAB..WORKED OUT PERFECT! I USED A DANA 24 CASE CAUSE THATS ALL I HAD AT THE TIME(SAME MOUNT AS A DIVORCED 205)

Do you have any pictures you could send me of your setup? considering you pretty much have the same truck as me.... If you have not been having problems with yours then it sounds like I will try to find a divorced 205. I was thinking about mounting it on either a complete replacement bracket for the one at the back of the cab, or modifying the existing one. Also, what did you do for driveshafts? All custom or were you able to pull some off of another truck?

Dave, instead of using a 2wd trans, use the divorced out put. Its shorter than a 2wd trans and will not eat up the room that the 2wd tailhousing will.

I ran the E4OD and a BW1356 in my mud truck for a while, and really can't say anything bad about them.

I am in the process of putting a C6 two wheel drive and the Divorced in 205 in my 93 F-250 reg cab long bed right now. It is not a bad swap at all. It might look alittle funny to some poeple with the front drive shaft being longer than the rear, but I have about 10in of suspension lift and mine drive shaft angles are fine. That was one problem I was having that my front drive shaft was to short and steap. If you want some pictures let me know I can send you some. Thanks

The front drive shaft was 50 3/8 and the rear was 39 3/8.
3143

3144
That is the transmission cross member for the C6. I got the center out of the 2 wheel drive 79 ford, it is raised on one side to go over the front drive shaft.
3146

3147
The driveshaft between the trans and transfercase will be around 12in. Whenever I get the transmission in I can take some more pictures.

IMHO it all depends on use of the truck.

straight line mud drag only = BW tcase or a 208c flipped

beater/hunting/baddest truck amongst your friends = married 205


Ive broken much more stuff playing with friends than I ever have on straight line drags and my truck is overbuilt and heavy because of it. This past season was the 3rd almost exclusive year of drag only and with the exception of a cracked block :confused: I havent broken anything. Playing in fields and under power lines I broke something almost weekly.


food for thought.

Id vote against a divorced t-case if you dont currently have one and dont plan on lifting this thing to the sky.

So when you gonna take one of the 50 parts trucks and make you a full out racer?

How much total lift do you plan to run on the truck? Once you figure that out it'll be easier to decide what route you want to go for the transfer case.

The front drive shaft was 50 3/8 and the rear was 39 3/8.
3143

3144
That is the transmission cross member for the C6. I got the center out of the 2 wheel drive 79 ford, it is raised on one side to go over the front drive shaft.
3146

3147
The driveshaft between the trans and transfercase will be around 12in. Whenever I get the transmission in I can take some more pictures.

Thanks alot, I may duplicate what you have here and use your measurements but I think that'll be overkill for what I want. I am thinking of running it a little higher and closer to the transmission using a shorter coupling shaft. I notice you have your spring perches in the rear lowered on the frame, do you have a reinforcement bracket behind them mounted to the bottom of the frame?

How much total lift do you plan to run on the truck? Once you figure that out it'll be easier to decide what route you want to go for the transfer case.

I plan on running 37'' humvee tires. I'm thinking I could easily do this with 7 inches of lift or so. I do not want to go any taller because I want to be able to tow my gooseneck flatbed and stock trailers on the back of it. Using the stock rear springs or something with similar load capacity will be in my plan, I don't really need a ton of flex as much as I need the weight carrying ability, so flipped rear shackles aren't in my plans either, lowered or custom spring perches, blocks, and ladder bars will be more likely.

We don't have jack for mudracing around here that I know of, this is mainly for me having fun in the mud.

Yes there is angle iron welded to the frame going down on each bolt.

Keep us updated on the trans install. What tail shaft or trans were you using. What year truck was it out of?

What do you think is better the NP435 or the C6?

I have a couple NP435's & access to a 71 Motor Home Trans

Local boggin & sand runnin. We are putting together a 79 F350 on a 75 Highboy Frame Dana 60's front & rear.

Kinda old school monster truck found it in a barn In MI got it for a pretty good deal. everything is now in the axles the 429 sat on the stand for 16 years. It will be resurrected at a later date.

Just going to put a nice little 400 HP dive C8 in it for now
I am subscribed for sure here is the new rig.

http://i150.photobucket.com/albums/s116/boulderwallguy/1979%20F350%20Highboy/1979F-350001-4.jpg
http://i150.photobucket.com/albums/s116/boulderwallguy/1979%20F350%20Highboy/1979F-350004.jpg
http://i150.photobucket.com/albums/s116/boulderwallguy/1979%20F350%20Highboy/1979F-350002.jpg

I know :eek:"Holey Lift Blocks Batman":eek: I said it was old school looks like a good start. Just one of the fleet of Dentsides. We opted out from the orig build when the 92 Cummins 5.9 fell thru too much work. I like the BBF better any how. I can build a Fummins later.

Anyone got a flywheel for a NP435 layin around.



.:D

That is a cool looking truck! I would love to get a hold to that one!


Keep us updated on the trans install. What tail shaft or trans were you using. What year truck was it out of?

What do you think is better the NP435 or the C6?

I have a couple NP435's & access to a 71 Motor Home Trans

Local boggin & sand runnin. We are putting together a 79 F350 on a 75 Highboy Frame Dana 60's front & rear.

Kinda old school monster truck found it in a barn In MI got it for a pretty good deal. everything is now in the axles the 429 sat on the stand for 16 years. It will be resurrected at a later date.

Just going to put a nice little 400 HP dive C8 in it for now
I am subscribed for sure here is the new rig.

http://i150.photobucket.com/albums/s116/boulderwallguy/1979%20F350%20Highboy/1979F-350001-4.jpg
http://i150.photobucket.com/albums/s116/boulderwallguy/1979%20F350%20Highboy/1979F-350004.jpg
http://i150.photobucket.com/albums/s116/boulderwallguy/1979%20F350%20Highboy/1979F-350002.jpg

I know :eek:"Holey Lift Blocks Batman":eek: I said it was old school looks like a good start. Just one of the fleet of Dentsides. We opted out from the orig build when the 92 Cummins 5.9 fell thru too much work. I like the BBF better any how. I can build a Fummins later.

Anyone got a flywheel for a NP435 layin around.



.:D