[RodnRudy]

If by engine cross member you mean the main cross member that goes under the engine, it takes 7/16-14 by 1" grade 8 bolts lock washers and nuts. Check the LMC catalog for the cross shaft studs. Purchase a 67/72 Truck Assembly Manual. It will be invalulable in your friends re assembly process. Torque for the bolts can be found in the manual but I think it is 55-65 ft lbs.