I just bought a f-250 frame to set my 77 f-150 on. It came with the transfer case, but it is divorced. I have always had Broncos so I have never messed with one of these. My questions are, 1.is this a good transfer case for mudding, and 2.what trans fits? I have a 7.3 powerstroke with a c6, will this fit?(2 wheel drive c6). also is there a easy way to find out the year of this frame, I assume it is pre 77 because of the divorced t-case. It has front disc brakes, but I do not know when they where first used, and I have no idea yet what the axles are. I am also fuzzy on the whole high boy low boy thing. I assume mine is a high boy because of the t-case, what is the difference between the two?
I know this is a lot of questions to start off with, and I think you in advance for your help. I will have plenty more, as this is going to be a father son project for awhile.

 

The disc brakes and divorced t-case tells me it's either a '76 or '77 frame, '76 was the first year for disc brakes on f250 4x4's, as for the divorced t-case being good for mudding imo it's the best t-case you could have, the NP205 is pretty much bullet proof, it's gear driven as opposed to the chain driven NP203 t-case, both the C6 and NP435 will bolt up, your axles are most likely a dana 60 in the rear and an open knuckle dana 44 up front, if you have the large hubs it's a HD44 up front, the lowboys are the '77.5 to '79's with negative arched springs up front.

 

juso one thing to add, the tranny on a highboy has more in common with a 2wd tranny than a 4x4 lowboy tranny. (i beleive the tailshaft "may" be different than a 2wd, but not sure) the reason for this is a divorced t-case uses a driveshaft to connect to the transmission, so in theory any 2wd trans can be made to bolt up...

 

I am not sure that there has been any mention of which case the OP actually has. This could be a 203 and it could be a 205. For purposes that the OP described, the 205 would be the most desireable.
Chances are very likely that this truck has a D44 and a D60. Given the year it does have disc brakes, and the divorced case will make this truck a highboy.

2wd transmissions can be used with aa divorced case, but are very different from a 4wd trans with a divorced case.
One uses a slip yoke, and the other uses a slip yoke. Probably a minor thing, but it is different.

Either way, the 2wd transmission can work with the divorced case.

The diesel install is interesting to me. Have you any pics?????/

 

I do not have any pics yet, but I will get some soon. I can already tell I am at the right place for help, thank you all. I have just drug in the frame, so everything is in the early stages right now, but I have had the two wheel drive 77 for 20 years now and it is very much family. I have also had a 90 model(I believe), (my back yard looks like a junk yard) that has the powerstroke I was planning on this going in a 79 Bronco. when the frame presented itself (for 150 bucks) it all became clear what should happen!

 

I cant edit my above post. I should have mentioned that a 2wd trans uses a slip yoke, and the 4wd trans wihen used in front of a divorced case uses a slip joint.
Again, either can be used, but the driveline with the slip joint and a trans with a fixed yoke was the way it came form the factory.
Pics are always a plus. Sounds like a fun build.

 

One more thing, the 2wd trans has the provision for the speedometer, but the 4wd version does not, as the speedo provision is in the t-case.

if im not mistaken you can swap tailshafts from a 4wd trans onto a 2wd trans, thereby creating a 4wd trans...

 

I did the same thing in a 77 highboy but a 460/ C6 out of a big car. I just had a new driveshaft made for the transmission to the transfercase. But the thing I ran into is that the 4x4 trans talehousing has the mount for the transfercase shifter and the 2x4 dont. I guess you could come up with something but that is the only problem I had ran into.