I'm looking at getting a 460 or a 7.3 diese with 2wd and using my 4wd from my inline 6. I have no idea if it would come together, but with a custom drive shaft from my trany to 4x trans case, could i use my front axle w/four wheel with the new rear axle from the f250 that the motor comes out of or if i got a new front axle. Would the 4x transfer and drive shafts work to the new rear and front.
thanks a lot
brian

 

I'm having a tough time understanding what you're even asking.

There is no driveshaft between the tranny and transfer case, for example, so I have no idea what you're asking there.

You also don't say if the truck with the inline 6 is an F-150 or F-250. It makes a BIG difference.

If you lay out your question more clearly, someone will be able to answer your question.

If the 4x4 truck is an F-150, it's a light duty Dana 44 designed to be run with coils. You would have to do some fab work to get the F-250 coils to work, or do some fab work to pur leafs under the front. Also, the Dana 44 from an F-150 will not hold up for long under the weight of a diesel.

 

sorry about that, i've been a little confused trying to figure how this could all come together too, heres some details. The truck is an 89 f150, 5 speed w/OD, I6. I'm looking at making a big truck.

Option 1-I'm looking at a 88 F250 with 2wd, manual, diesel 7.3. I'm looking at 36 or 37's and am not sure if i should use the diesel, frame and body and rear axle, use the F150 4wd trans, new frnt axle

Option 2- if it would be worth it to regear the F150 for 37's with only an I6.
thanks a lot
brian

 

OK, that makes more sense.

You have a couple problems with what you want to do.

You cannot bolt the five speed behind the six to the diesel. Even if it fit, which it won't, the diesel would destroy the tranny the first time you got on it.

You are going to need a 4wd trans that was originally behind a diesel.

Second the Dana 44 front axle is not a heavy duty axle. Depending on what you want to do with the truck, you are going to break an axle with tires that big under the weight of a diesel if you do even moderate off-roading.

Third, if you put the D44 up front and leave the 3/4 ton axle in the back, you have to carry two spares because one is 5 lugs, the other 8 lugs.

Fourth, it's not only worth it to regear with those tires, it's necessary. The truck will be a total dog with tires that big. It will barely be able to get out of its own way.

If you want to run tires that big, which I think is a cool idea, then you're going to need a complete 3/4 ton drivetrain - axles, tranny & motor.

Also, if you put 37's on the F-150, which would also work and would be the least amount of work and probably cheapest, you're already at the upper limit of what the stock 1/2 ton axles can take. If you run it offroad hard, and you will want to, you are going to break an axle shaft or u-joint sooner or later. The 5 speed in the F-150 does not exactly have a glowing reputation either.

Honestly, I think you're working backwards. You're starting with the parts you have and deciding which ones to use to make a big truck. I think what you want to do is figure out what you want to do with the truck and then you start picking your parts. You'll be much happier with the end result.

Edit: I'm not at all trying to discourage you - lifted trucks are just plain cool. But you should be happy with it when you're done.

 

Hey, thats exactly what i wanted and expected to hear, little truth never hurt anyone. I realized the lug and gear probs but didn't know about the 4wd trans and axle, thanks. I know its not ideal and i didn't think it had any chance but i thought i'ld give it a look while i have some parts laying around and haven't started anything yet. I think i'm going to scrap the f1 because its not the right base to start on, i think a 3/4 ton with a 351 or 460 would be the best option and work from there with new gears and the rest. I don't think wasting any more time on the I6 is worth it for what i want to do now. Thanks for the helpful advice.
brian