I THINK THAT IS WHAT I WOULD DO , ONCE YOU GET THE ENG AND TRANNY BOLTED TOGETHER AND SITTING ON THE FRT MTS, THE REAR CROSSMEMBER WILL BE A SNAP TO PUT IN PLACE AND BY THE WAY YOU WON,T NEED ALL SIX OF THE BOLTS ON THE CROSSMEMBER , 4 IS MORE THAN ENOUGH , YOU CAN USE A PIECE OF 1/4 IN ANGLE IRON BOLTED ON EITHER SIDE OR WELDED, AND THEN THE 2 LARGE BOLTS ON EITHER SIDE, IT ISN,T GOING ANYWHERE , ALSO I WOULD NOT WELD IN THE CAPTURED NUTS , USE NUTS AND BOLTS , 2 OF THE NO 7 BOLTS ON EACH SIDE OF THE FRAME ARE MORE THAN ENOUGH AND YOU CAN POSITION THEM TO USE THE ORIGINAL (THE GREEN ONE ) CROSSMEMBER . JERRY