I'm an ex minitrucker myself. Had a 78 Datsun 620 king cab and an 85 Toyota that went body dropped to the doors, roadster, unibody. Brought the chevy home and sold the Toyota project for engine money. Yes, the M2 lines up like any other front end. Just set it up at ride hight. The IRS I aligned myself by setting at ride hight and then re drilling the upper arm mount to stand wheels up straight. Before the rears rode with negative camber and REALLY had camber at drop, as can be seen in the construction photos.