Hello I have recently been given a 95 k3500 gmc with a 6.5 in her. The trucks engine was in pieces when I was given it. I have put in a new starter, batterys, all new 1/0 cables. The truck will crank fast for a few seconds then loads up and almost stalls the starter out. If left alone or cycleing the glow plugs It will begin to crank fast a again for a second and load back up. I did get the truck to run once but being that I didn't have a the radiator in it I didn't run it more than 10 seconds.