gsparks

Having my auto tranny upgraded with 3 disc torque convertor locally made and also having Goerend valve body upgraded. My question is, my 2004.5 Dodge Cummins made 01/04, does it have the upgraded thrust washer that they had problems with a exhaust brake?? Is it just one thrust washer and where is it located?? I thought I have heard some talk about Dodge upgraded it to a steel needle bearing but not sure about that. Appreciate any info...