Did all 4spd manual F100 73-76 4x4 use the Dana 21 or was the NP205 avail as an option?


All automatic C4 or C6 use NP 203 or 205? no Dana 21?


thanks,,,,,,,,,,

 

The only piece of that I can answer is that the C6 usually shipped with an NP-205. The NP-203 usually shipped as a divorced t-case, so it COULD be used with nearly anything. The 205 is married to the C6 using a Ford tailshaft housing.

 

Correct me if I'm wrong but I believe after 75 they were all np203. I believe I'm not positive

 

No. I own a '78 with a married NP-205.

 

False. NP205 was standard (part time 4x4) the NP203 was an option (full time 4x4) Kinda strange because the 205 is a much better unit since it is internally all gear driven, plus can be shifted into 2wd

 

Same here.

 

I am pretty sure most '76 f-100's that were four speeds came with an np435 actually from a 2wd truck with a 10 spline input shaft and were married with Dana 21 transfercases.

 

We need NumberDummy to comment on this or someone else with access to a MPC. The NP203 and 205 were also married with the NP435, but I'm not sure what years they did it. I have personally never heard of a 78 or 79 with the Dana 21, but I know they used it on earlier models, I just don't know which ones.

 

NP203s and NP205s were the only available transfer cases. Only 73-76.5 F250s got the divorced transfer cases, all other models had married cases.

 

That is not true 4 speed F100 4x4s definitely came with the married Dana 21 single speed transfer case atleast in 1973, I think they probably used it until the F100 4x4 was discontinued in 76 but not sure about that.

Also 73-77.5 F250s came with the divorced transfer case, not 73-76.5

 

I stand corrected. After doing a bit of research it seems that the Dana 24 case was used in 6 cylinder 1/2 tons up to 75.

 

Correct, the early 1/2 ton dentsides with 6 bangers still used the Dana cases, I don't know until what year and i'm too tired to look it up.