Common Narrowed Rear Axle Dimention

[Mopar Muscle]

Planning my '65 Plymouth Belvedere I rebuild. It already has an AMD mini tub and a narrowed Dana 60 when I bought it. I understand that wheel width and backpacking preferences must align with the axle flange to flange distance. However, is there a common axle width that many use with a mini-tub on the '62-'65 B-bodies? I just want to compare what I have to what others have successfully used.

 

[dvw]

Around 44"-45". When measuring for wheel width and backspace tend to go slightly narrow. You can always add spacers. If it's to wide you are in trouble. Don't forget to factor in drum/rotor thickness. 10" wheel with a corsponding tire fits pretty easy up to 30" diameter. A 12" wheel will require the upper flange of the frame rail to be trimmed flush (at the wide portion of the taper) along with thinning of the outer lip along the top.
Doug

 

[Mopar Muscle]

That confirms what I thought. I just went and measured without taking the wheels off. I'm getting 53" to outside of the brake drum face. That probably puts the axle flange to axle flange closer to 52.5" to 52.75" which is only around 2" shorter than stock.