8 1/4 Gear Change Question

well depends on what your doing. if its goin to be a race car just go straight to 8 3/4 or dana. just streetable it will be fine if you dont go too big with the power.now to how easy i assumje you can get the rear appart now can you do pinion depth, gear tooth pattern, bearing preloads and stuff like that its not that bad. you just have to get the rear out cause itll be alot easier. like im doin it now to my 8 1/4 with 3.55 sure-grip. im 17 and everything so far has been easy to me but puttin it back together is another story. my dads friend who is good with mopars and rears is helping me with it.