Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

Aaron, How did you part-time your truck? by converting the 203 over or by replacing it with a part-time transfer case (NP208, NP205, etc)?

Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

he did the 203 conversion. i hear nothing but horror stories out of it from the jeep guys.

Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

Yeah, I don't think I'll got that route.

So no wheel chirp wheel in 2wd with a 208 nekkidhillbilly?

I intend on putting a Detroit Truetrac in the rear end btw.

Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

wasnt in the truck i had which was a k20 or the few k5s and k10s ive rode in. i dont see how it could really in the front the thing is completely free spinning in the shiftable 4wds when not engaged. its just like throwing a trans in neutral. the later trucks like my 04-01 your hubs stay engaged even and ive never had that issue. now ive had rear posi do that in curve on a hill some times but that has nothing to do with a 4wd system since its occured even in a 2wd truck ive driven.

Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

I used the mile marker conversion.

Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

Well from what I've been reading, the first step is definitely a vacuum gauge regardless of the gearing and transmission. I just might be steering to the 700r4 - np208 - locking hubs configuration.

I like the idea of just keeping the hubs locked in the winter months and unlocking them in the warmer months. Being honest with myself, I have got stuck in snow way more than in mud. Mainly because if it seems muddy, I stop and ask myself whether it is worth it. (stuck, get out walk, get a tractor, or go to the neighbors and ask for their tractor all the while in a soupy mess). Snow isn't as bad.

I'll chew on this for a bit. Whatever install I do, I will be back on this thread to update what configuration gave me the best fuel mileage. I plan on working on the truck once the weather warms up (currently -19C or -2.2F haha).

Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

i odnt think you will complain with the set up at all. how healty is your engine btw you may look into a ls/60e swap with the 208 if your going to need a better engine soon anyhow.

Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

Running your front hubs locked while in 2wd on ice is going to make for some funky handling. Those front wheels aren't going to roll as easy as being unlocked and will be sliding instead of rolling. You don't want to learn that the hard way. If you don't need all wheel drive in your climate then a part time transfer is all you need.

Re: 1978 full-time 4x4. Is a 700r4 worth it?
 

you do realize that all trucks built in the past 20 years besides superduties have the front wheels locked all the time from the factory. i just drove my 04 in 2wd on ice you dont notice it really.