Outer Limits 4x4 Board

Just chasing a few answers obout rocky diffs. Are they as tough as they say? width from hub to hub, pumpkin placement, ratios parts availibilty, steering set up and anything else that I should know. I was thinking of puting them under my serria with 35 mtrs. rocky in the middle to late 80s I think.

Prolly be better off with luxy diffs, lot more stuff available for them, locks, gears, spares. Lux are banjo housings too, much easier to set up stuff, Rocky diffs are Salisbury style (cast housing).

also no lockers avaible.....