If the !4 bolt is a full floater, I'd choose that for sure. That's what I have waiting to go under my wj. And if you have the np242, you can get a sye with a speed output to read your speedo. The 14 bolt has pinion support which only the custom atomic axles have. So that makes them mire desirable than a 60. Thicker axle tubes and I think 35 spline shafts stock as well. You might want to shave the center section. Plus 14 bolts are a dime a dozen so if you ever break a shaft or anything, parts are cheap.