Thread: 70 series - what mod or what mod NOT to get

Full service and quality fluids throughout - diffs, trans, transfer case, brakes and clutch as well as engine and fuel filters. Also, if it hasn't got them fitting extended breathers to all gear cases and running them up somewhere high. I ran all of mine up to the highest spot I could get under the bonnet, I did a bit of a different approach to most and ran the rear diff forwards along the right hand chassis rail and used t-port or three way hose tail connectors to connect the breathers for the transfer case, transmission and front diff (I also ran one to the PTO winch). That left just one vent position under the bonnet, and I used a small inline fuel filter pointed down with a 90deg connector at the top. Worked well and didn't end up with the lovely diff oil smell in the cab.