though you can find them for less and much more,i payed in the middle at $750 iirc shipped to the loading dock within an hour,where they loaded it via fork lift for me.
often car-part.com has yards list the CnC axles as the pickup drw axles,because a lot of people just don't know any better.those are not worth near as much (just the same srw axle $100-200 range if you ask me) as the true wide drw axle,that some places ask over a grand for alone (which is getting way out of hand for a 20ish year old rear for gods sake.)
like anything it's worth what someone is willing to pay.i thought one was worth $750 for my work truck and it's not even limited slip.
private party rather than a yard is often cheaper of course but these trucks are getting rare around these parts.rusted out and scrapped now,so i had no luck and had to order from out of state.........even that took forever and a day.

 

Well then they aren't 12.5s

I have seen for sale dually wheels wider then 6" but damn big $$$$$$$

I mean from the outside lip(tire bead) of the inner wheel, to the inside lip(tire bead) of the outer wheel. Does that make sense? My guess would be about 2" per wheel plus your 2" spacer so 6"

I did a google search for OBS Ford dually large tires and your truck came up in the pics.

 

So $350 with a the rest of a truck tossed in for free is a good deal, lol.

 

Hmm I put 315/75R16 into a converter to convert to inches and it came back 34.6/12.4R16. But you said the tread measures 10.5 hmmm

 

you couldn't even think twice if it's a pickup.it's an instant buy.by the time you part it and scrap it,you'll brake even and get a free axle or even come out ahead if there's good parts to sell.
if it's got a dually pickup bed....there's another item that sells for upwards of a grand.some pay 7-800 for them and consider it a deal.
those dually rims.$100+ each new for another $600+
all those lug nuts for i can't recall around $7-9 each x 32 (though i payed 50 cents to a buck each for most of mine pawing through salvage yards buckets)

you'll still need some 4WD dually hubs from an f350 Cab N chassis or arrowcraft AA4's if you want to convert the front end of a D50/D60 but since it would be a part time DRW and mainly SRW,i wouldn't spend the $.
but i wouldn't spend the time or $ for just a part time DRW convert either so.

 

I paid 500 for my dually axle 4.10 with a Good LS

If i am following your correctly. taking a ruler and sticking it in my wheel well till I hit the Inner wheel well and then going straight dow to measure the outer bead of the inner wheel, I have 9.5"

If the 315s were mounted on an 8-10" wheel like recommended, they would be 12.5

 

315 is section width, the widest part of the tire, which will vary depending on what width wheel you run. Tread width will be less. I believe they use the optimum wheel width to come up with that #. 75 is the aspect ratio, the height is 75% of 315mm.

 

X distance

............v----X----v
|______|........... |______|
............\.......... /
.............\........ /
..............\...... /
...............\.... /
................\.. /
.................||
.................||
.................||


ignore the ... should look like wheels

 

Found this posted by Brad on "another" forum;

SRW axle
Face of drum to face of drum 64.5"
Spring pad width 45"

DRW pickup axle
Face of drum to face of drum 70.5
Spring pad width 45"

DRW cab-n-chassis
Face of drum to face of drum 66.5
Spring pad width 40.375


In that same "other" place another poster posted this "I ran a F350 C&C rear with 4.10s on the back of my 93 F250. Had the perches rewelded so it bolted up & had the 3.5" brakes."

 

That was either Oilburners and Goofy posting that or Powerstroke nation and it was CAT.

And those measurement were a ROUGH measurements.

Running the cab-n-chassi axle in a SRW pickup is like running a 1" spacer, what is your point?

 

That everywhere I look, even from very similar sources I see different answers.

 

Tell ya what. Why dont you come to my house, jack up 2 trucks and remove 8 wheels and 2 spacers and help me measure 3 axles

 

he forgot to mention he also ran dually adapters too i would guess.had an f350 cab n chassis with a replacement cab sitting on it and didn't know it or either that or he was simply mistaken as to his donor truck.or simply just talking a good talk.you can't believe everything you read on the net.......unless it's posted by Brad or I and then it's all good.

 

I would but it costs less to just buy some axles/trucks and do it myself, your too far away, lol.

I bought that 86 today, way too many good parts to pass up on for the money even I it will be a huge pain in my rear. It does have the 10.25 in it. Will probably be 2 or 3 weeks before I can get to it but when I do I'll have some real numbers.

I'm pretty sure I read or had the impression that he ran it SRW and just did the swap to get the bigger parts(brakes, tube) I'd have to find it again and look. Was in a powerstroke forum in the thread Brad started about tire size before doing his dually swap. Anywho, don't really matter.

 

Old thread, but how did this turn out?