Mopar 8 3/4 disc brakes with stock tapered roller bearings?

Doctor Diff's rear disk set ups can be used with the stock tapered bearings. They're a little more expensive than some of the other rear disk conversions out there, but like with pretty much everything else Cass sells they're high quality parts that IMO are worth a little more money. And I prefer the tapered bearings over the green bearings myself, but that's just my preference. Cass wrote a little article/explanation on the green bearings vs. tapered bearings. It's good info, but I myself still like the tapered style and adjusting them is a piece of cake once you've done it a couple times. Why Green Bearings? - Quality Body Shop Drivetrain

Here's his 10.7" kit, he has an 11.7" kit as well if you're already running larger front disks.
Mopar 10.7" Rear Disc Brake Kit