differential narrowing jig

Hmmmm I don't recall my kit costs $650 :poke: ($204.99) small price to pay for precision
Ya, that's the Mittler Bros kit off of summit. Has 9" Dana 60 8.75 etc etc puck, with the bar, but no rulers....
I have an s10 pickup 2wd that I'll probably get an 8.8 and try the RRR method.