8-3/4 abody identity- what year?

[Syleng1]

So I broke the motor in my 66 Barracuda with a 8-1/4 rear I rebuilt but dis like the 2:45 gears so I bought an 8-3/4 abody rear and had a good 3:23 sg to drop in it. The axles are Dr diff big bolts for 2-1/2” x 10 drums. How do I know what actual year my housing is? My 72’ Demon has the breather down the left axle tube further toward the backing plate- factory rear. I want to order the correct appearing SS brake likes since the 8-1/4 ones won’t sit correctly. I’ve got a single weld on brake line clip on the drivers side back side of the tube. I’ve got a weld on brake line clip at about 1oclock on the top of the banjo (looking rear to the front) and a single brake like clamp front and back of the tube passenger side. Any ideas? Not a cut down housing. Factory welds. thanks- Joe

 

[MoparMike1974]

I believe that is the earlier version with the vent bolt closer to the diff.
Order it from dr diff, all you need to do is punch in your measurement when you order.
Mopar Rear Axle Brake Line Selector for A/B/E Body

 

[Alaskan_TA]

The brass block location moved off the banjo radius to the tube for the 1970 model year.