My 06 Kodiak 5500 4x4 recently lost oil pressure. Haven't had time to pull the motor yet, but I'm ready to rebuild. Are there any updated/upgraded parts I should be looking at. I run a 50hp tune from PPEI, Stage 1 DDP turbo, and pusher intake/ y-bridge. It is mostly used for towing a 40ft trailer and generally the most abused truck i have, so any tips to help it last would be appreciated.