4.5L has its own hose of issues and TBO dealing with HG issues or PPH (just search MUD) and you will see changing HGs isn't what i would call a preventive maintenance on these rigs. a Nomad Valve Body optimized shift points, added a 3rd gear lockup and greatly reduce heat generated from the 440F. just my .02I wish I had a stock 4.5, this 3FE is only a 4.0, what is a Nomad VB?
Thanks