better do some checking. I have a 1993 5. 9 thats taken out three thrust bearings and I
cant find the cause. Thrust bearing failures can be caused by balooned converters, restricted trans. coolers, cracked crankshafts, bent connecting rods, and some types of misalignment,among other things. I'm also looking for ideas. cummins tech line said they have never heard of the problem. I have a hard time believing that. Someones got to have an answer. Good luck.