a friend of mine just bought a 94 f250 4x4 with a cooked turbo diesel in it. his plan is to swap the axles in his 94 f150 4x4 because he wants the strength and 4.10 gears and limited slip from the f250 axles. he's going to use the leaf sprung suspension out of the f250 from the front. what i am woundering is if anyone has done this or can give me any pointers i can pass on to him? cheers

 

the rear axle is a direct swap out.

the front axle is a differant story and requires lots of welding and fab work.

1. the cross members are differant and would have to be swapped out.
2. the front frame horns on the f150 would have to be boxed in and spring mounts fabed up.

i had the same idea to do this at one time and found it would be easier to just swap out the whole frame.

 

ya he's going to use the spring mounts from the f250 and ya the cross member will have to be bolted in for sure. any other problems we could run into?

 

yeah the accordian frames on the front of the f150. they will ahve to be boxed and the shackle will have to be moved to the rear of the spring.
then everything has to line up so the axle sits straight and even.

are they both long beds? if they are it would be easier to swap drive train and bodies.

 

well the problem with that is the 250 was a diesel so putting a gas job in it would be alot harder then an axle swap i would think. the front off the frames look really close to the same.

 

allyou have to do is unbolt the frame mounts for the motor then put in the ones out of the other truck and it will drop right in.

and it is about the same work it is going to be to swap out the engine cross member. your still going to have to pull the engines and at least the front clips off, if not the whole body. to pull the frame apart to get the old and then the new cross members in.

 

ok what about wireing? and i guess the gas tanks would need to be swapped. what about brakes? diesels use a different system.

 

its not that hard.

that truck in my sig.<<<<<<

it is a 86 f250 diesel frame and axles.
the body is a 1995 f150 so is the engine.
my trans is out of a 79 f350.

i stripped the 250 down to a rolling frame. and put everything off the f150 frame on it. tanks lines wires.
the only brake upgrade that i had to do. was buy a master and powerbooster. to replace the f150 (to small) i paid 500 for both trucks. and put less than 500 more to get it to run and drive.( i dumped in about 1500 more and replaced everything.) but you will be abole to use stuff off the f250 truck you have.( since mine was the 80-86 body i couldnt use anything.

 

Unless he had the upgraded front axle it is still a Dana 44. The Diesel use a vacuum pump to power the brakes so the booster will hook up in the same place as the gas engines do. The wiring and computer will swap out for engine specific harnesses, just unplug and plug the one for that engine in. Even if he switches axles he would still have to switch the brake booster and master cylinder out.

 

thats funny because i'm running a booster off a 7.3l turbo diesel on my truck right now. the boosters and the master are the same. the vacuum pump is there to keep power to the brakes when the engine loses vacuum( which diesels do).
by the way the part number is 50-4400. check the orielly's website. it fits 146 vehicles from 1987-1995.
and i'm not running a vac pump on it.