Thoughts on Drum to Disc Conversions…

Got it--sorry that I missed that above. The 15/16" master from Doctor Diff is currently out of stock (I've got a message in to him to see if it's coming back).

Other than aluminum v. cast (and build quality), is there any functional difference between the Doctor Diff 15/16" master versus the factory 15/16" masters from the mid 73+ A bodies with manual disc/drum?