My buddy has a 1977 F250 4x4 high boy with a 460, c6 and divorced np205. The problem is he bought the pick-up without the linkage that goes from the transfer case shifter to the transfer case. We got a linkage from a older ford (not sure which year) which was just a single bar and hooked it up and it had much trouble shifting. I also believe the pick-up was a full time 4wd and the previous owner put hubs in it because the transfer case shifter only has 2 settings 4-hi and 4-lo. So my question is did older fords have a different style linkage then a 77?

 

Note VIN# application

 

1978

 

The linkage we put in looks like the one in the second picture. I think we may need the twin linkage set up as shown in the first picture and the third picture doesn't even apply because the T-case is divorced.

 

Also if this helps figure out which year of ford we pulled it out of the front end on it was a Dana 44 but it had the weird ends like on a toyota solid axle does if you know what i mean.

 

How confident are you that the case is a 205?
I am a little confused by your description. You mention a 205, and also mention "Full Time" transfer case, which would indicate a 203.
The 203 requires a shifter that will have two linkages.
A single linkage is only used for the 205, since the two shift select shafts are tied together.
If you do have a 205, and it does use have the two shift shafts, you should have no problem, but I suspect that you have a 203, and you are only sifting the range box, and this is giving you low and high selection only.
May also want to figure out if the 203 has been converted to a part time unit.
Knowing the case is gonna be pretty important. The pattern changes if the 203 has been converted to part time, and might be why you are having trouble.
The 203 will have two levers on the side of the case, and not directly in the front like a 205.
Tags should be on the case, but even without them they are pretty easy to identify. Would not be the first time a 203 and 205 were mistaken for each other.

Oddly enough, that front axle you describe with what appear to have something in common with a Toyota, would indicate a "closed knuckle" front axle. These were not under 77 trucks, so you may have a low pinion closed knuckle axle under there that was donated from an earlier truck.
Does it have drum brakes?

 

x2 there 75F350 sounds like they got a 203,too bad your so far way i have the complete linkage from a divorced 203 setup

 

No the ford I took the linkage out of was closed knuckle not the the ford my friend has. Im not sure it is a 205 thats what my friend said so yeah its probably a 203. So i guess we have to find a 2 bar linkage.

 

Sorry to drag up such an old post, but I was just wondering if you ever found a 203 set up? I am having a heck of a time finding one for my truck. Jack