Hey Nacho when you get a chance show us a picture of the two piece A body axle.
I've only seen them on early B bodies, please school us!

I can't tell or show about that. Personaly never have seen on any body, BUT I know 2 friends who made that on their Darts! One of them is the Dart posted from the FB profile which I know personally since 2002. Unless they lied me.

Need to note is a job made on a machine job per what they told me. Press, weld and machine job is required. Not a bolt on two pieces axles.

GUYS, IF I'M WRONG, REALLY SORRY I'm just tellling what they suposelly told me made to the mod. Is not a personal experience. So if they lie me I can't find a reason why did it

nacho, you are a straight shooter and stand up guy, so don't be too hard on yourself. things in your neck of the woods are worlds apart from here in the states, so anything is possible. modifications to make something usable is understood to sometimes be the only viable option opposed to having something imported, which can/would be cost prohibitive.

When I went to 4 1/2" pattern I used a adapter. Never had a problem with them on the front. It does as mentioned above, it out sets your wheel the thickness of the adapter. I'm running the adapters on my 67 Barracuda in my picture. I later found a 74 Dart disc brake set up and converted it. The car came with a 8 3/4 and bought aftermarket axles for the rear.

don't worry! I can understand that and thanks

ok just called to the Swinger owner and explained me with detail how they did it!

as you say, is in fact a one piece assembly BUT they really CHANGED the hubs. Of course was a machine shop job. What they made is cut the hubs on both axles, cut splines on the Dart axle and press fit the B body hubs into the Dart axles. Then seam weld on both faces of the hub.

They told me is a pretty much tipical job done here for old BIG ton trucks ( several brands ) where original axles are become hard to find, so holds the heavy duty abuse with confidence.

They in fact race with this car and the job done for long time, although about a year ago or so, they got new aftermarket axles ( I think with green bearings )

so, it is posible to do it, but maybe easier modify the axle splines getting the right thickness axle on inner end ( per this website ) from B bodies if you want to keep somehow the stock assembly, not aftermarket pieces

http://www.hotrod.com/articles/mopp-9910-how-to-install-a-big-bolt-pattern/

On my sons 72 Dart we put 75 Dart front disc on it with the larger 4.5 bolt pattern. On the back I had an 8-3/4 rear from a 67 Cuda I put in it and we had the local machine shop drill the axle's 4" to the 4.5 pattern. Its had the drilled axles in it since 1997 and they are still in it. Been raced many times over the years and they have held up fine. Ron

Seems like a ton of work when new axle shafts with new bearings and new studs is just under $300 at Dr Diff.

Agreed, except if you can make it by yourself, saving the maching payment.

I wouldn't use green bearings thought, would keep stock ones. I Think DrDiff are to be used with green bearings? Dunno the Moser ones.

But when you do that, different drums and shoes, maybe backing plates too depending on drum size. Then worrying about wheel offset, tire clearance...

I didn't read the other replies so know that this might have been said.

I priced doing this from a salvage like 15 years ago. I added up salvage price on control arms and spindles. Then i added in ball joints, rotors, calipers, pads, bearings, all new because I wanted reliability, I also added in an alignment. I think I came up to about $550. I bought a wildwood brake kit for $600 and have enjoyed the upgrade ever since, I got disc brakes and the big bolt pattern out of the deal.

This was on a car that is a street strip application but the wildwood stuff has been great, no parts changes other than pads in 15 years. For the rear I upgraded to 35 spline axles and had Moser do the axles with both bolt patterns.

exactly what axle do you have that you "upgraded" to 35 splines and what did you do for brakes?

Excuse the lack of detail in that post, I have an 8.75 rear axle with a spool. When I upgraded the axles Moser did them with both bolt patterns because I was still on small bolt wheels but I saw the need to go big bolt in the future. I had a machine shop friend drill the bolt pattern onto my existing drums when I made the change.

I dont know if you ment us drilling the axles on my boys Dart ? But we did that in 1996 actually and I dont even know if Dr Diff was around back then or if he was I did not know of him back then. Ron

I was referring to Nacho's friend's method.

I thought you were buy was not sure. Thanks , Ron