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Ok, since there is the ongoing talk about the transfer cases...What cases where offered??
My parent's had a 79 F150 with an auto..I do believe it was the C6. I have a 78 F150 with a C6. But we have different transfer cases..Well, the shift-pattern is distinctly different.
Mine goes something like
lock
2high
blah blah(I should go look huh)
nuetral
4low
lock
obviously it's not exactly like that, but it has the "lock" positions.
My parent's 79 had just
2high
4high
neutral
4low
thats how it went i do believe..Am I missing something or just crazy?
If it has the lock position it is a full time transfer case. Full time transfer cases had a
center differential, and the lock position locks
the differential for use off road or on very slippery surfaces. It is a open differential and
can transfer all the power to the front or rear, the same way a open differential in the rear can transfer all the power to one wheel.
Where 78's available with full-time 4wd? The truck still has the factory sticker telling you to lock the hubs.. Which, it also has, and my uncle's 76 F100 fulltime 4x4 doesn't have..
And the Ford Truck mysteries continue...
I know how to solve this...Have someone watch the front driveshaft?
Sounds strange Matt. A full time 4X4 should not have locking hubs. In fact if the hubs were disengaged, the vehicle would not even move unless the center differential were locked. The front
drive shaft would spin, but no power would be transfered to the rear, it follows the path of least resistance. That's why the rear tire with less traction always spins. Any chance you have
a part time transfer case and someone changed the **** on the shifter?
Another possibility is that it was a full time converted to a part time. I know there were kits available to do this that included locking hubs.
Just noticed your post in the other thread on transfer cases. If it was a conversion it would explain why yours is different from your parents and yet it is a part time. It would also explain the incorrect shift ****. Here I am blowing all this smoke and I'm not even sure if full time was offered in 1978.
Got real bored, pulled out my 1978 Ford Truck Shop Manual. It seems that in 1978 Ford offered both NP203 full time and NP 205 part time, both fine T-cases which they would have done well to keep using.
The 203 shift pattern is shown as (from top),
Lock, Lo, N, Hi, Lock. The 205 is not shown.
There is also a huge thing called the "Rockwell
T-223-C1" for F-600 applications, which I would imagine could eat an indestructible NP 205 for a light snack.
Now: I need some help from one of you guys with a '78-'79 leaf-sprung F-250 or F-150 SuperCab. Go outside with a tape measure, and in as straight a line as possible (the tape, not the way you walk), measure on the front axle the distance from one side's disc-brake wheel flange to the other (wheel flange: the flat mating surface of the disc brake to the back side of the wheel). Hopefully, it'll be around 65 or so inches.
Thanx, Ed (selt@flash.net)
Yes the NP 203, full time transfercase was offered in 1978, my Dad had one in a F-150 4X4 he bought new in 78. We had a part time conversion kit put in it in 1981 and its still in it and working fine at 207000 miles.It stinks though because you have to stop and shift the transmission to neutral then shift the transfer case. The instructions with the kit said damage will occur if you don't do this, I've never risked it by not doing so.
How is the 203 in strength? I plan on lifting about 4 inches and running 35" tires , after I get the body and everything else how I want it.
My only other question is, does anybody know how the 4x2 and 4x4 works with these converted cases?
I mean, does it run in 2wd when in low or high, but then go to 4wd when in lock? Or does it run in 4wd all the time except that you can unlock the hubs?
Matt, yes the transfer case is in two wheel drive as marked on the shifter, hi & lo , I've used the lo position many times just to pull something that didn't need four wheel drive, so yes you can use it that way if you just need the extra grunt! Its in four wheel drive only when its in the lock position, lock your hubs and shift it to the lock positions ( hi or lo ) it works the same as the 205, you just have a low two wheel drive position. My truck has always had 31's on it so I don't know about that big of tire. The 203 seems strong enough, just watch the shifting deal like I mentioned above. Like I said I don't know what would happen, but I never chanced it!
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