if you are interested, i have a complete front axle and suspension with wheels out of a 2wd 450. i would think it is the same as a 550. the truck it came out of had a fire, so brake lines and abs wires would need to be replaced. it also has tires, but they are about bald anyway and have plastic melted onto them from the inner fender liners. i can try to get some pics this week if you are interested.

 

The F550 frame is quite a bit heavier than the F350 frame. The F550 brakes, front and rear, are quite a bit larger than the F350 brakes.

 

The FRAME is different (from the 350 chassis cabs)? This is the first I have heard of that. Can anyone ellaborate?

 

I don't have specific sizes, but the cross section of the F550 frame is bigger than that of the F350. The mounting points are the same, but the C channel is larger.

 

Frame is different from rear of cab back. It's the same up front.

 

Is it any stronger?

 

Besides all this, nothing you can swap onto this truck will provide you with a official payload increase. You will still have a truck that can legally only carry what it used to.

 

[ QUOTE ]
Besides all this, nothing you can swap onto this truck will provide you with a official payload increase. You will still have a truck that can legally only carry what it used to.

[/ QUOTE ]

Wrong, DOT can and does recertify trucks with upgrades for higher weight ratings (mainly for tax purposes)

 

In CA I could classify my 350 to carry 40,000lbs (doesn't mean it's prudent /ubbthreads/images/graemlins/smile.gif

What I am looking for is wether I should bother to upgrade, or just swap.

 

here is a slideshow of the pics i said i would get up here.

i am asking what i paid for it, $1300
slideshow

 

Thanks for pics, if it were a 4x4 axle I'd probally grab it, but don't need a 2x unfortunately.

I will have to move the spring perches out 2.1" each side, but it looks like it may be doable. (brake clearance could be an issue, still looking into it.)