Beretta.net

I know almost nothing about the rear disc setup - it looks like he offers them in 3/8 or 5/8 - any idea which one I'd need for the 92 Z?

You'd have to measure the space you can accommodate for with your rim width.... Right now I think the bearing has a 1/16" or 1/8" max spacing with the factory drum backing plate so you would be removing that and putting 3/8 or 5/8 in it's place so you need to ensure that your wheel getting pushed out that much further will not result in contact with the lip of the rear quarter panel.

I'm payed for in full on this! I can't wait

Any more life on this. Knowing it's a year and a half old?