A few years ago I remember reading an article about ARB and an axle company (Yukon?)getting together to make a hybrid dana30/44 they used D30 axle housing with D44 inner C's & knuckles and made the ARB carrier 30 spline with the D30 demensions(to fit the case ie bearings,races,shims) and the axle company made axle shafts to fit the diff and used D44 U-joints with D44 outers. The purpose was for rock racing and Rock racing where they needed the clearance. Either way its a cool idea to combine the 2 to come up with a fix for the some what hated Dana30.

Greg