well a rod vise is what you need ARP rod bolts are TQ to 50 with moly if you do not have a rod vise then have him back them off .i do rods all the time and if i am not building the engine i will back the rod bolts off .less you piss me off then i just may not this would fall in to cruel and unusual punishment .that and not hand fitting the caps so you can get them apart you could try some 1/4 alum plate and clamp the rods in a bench vise by the big end and use the alum for soft jaws