i have a 29 spline in my garage with no shafts and stock gearing i have the 488s for a dana 30 ring and pinion in a box in my closet. All i need to buy is the shafts for the 8.25 and the 488s which i can afford now or should i wait till i can afford aussie lockers for the front and rear and do it at the same time????? and should i even use that 29 spline when the shafts are 120 a piece????