the M715 front springs sit wider than the D60 front spring perches. about a spring width per side. im going to spring over a D60 and the spring will actually sit just outside the flat thats built into the D60 pumpkin for the spring perch. I like this because it will make the spring over not so much of a lift. the springs will sit lower closer to the axle centerline and i may take out a few of the stock m715 spring leafs and have them banded to the top of the spring pack. I want the spring over but not so much lift. some machining and welding will be required for this. moving the spring perch on the tube side of the axle and making a perch and shackle brackets. getting my DRW 14 bolt ready. its at the sand blaster right now. doing the back then the front. humvee H1 tires and rims. ARB air lockers and 4.88 gear sets.