My Cargo Max rolled up 70,000 miles today...I changed the ft shocks and changed the Oil and Filter and lubed the Ft End...I will flush the cooling system at 100,000 and fill it with AmsOil "Propylene Glycol" coolant instead of the normal "Ethylene Glycol" coolant. The AmsOil coolant is good for 250,000 miles or 7 yrs in gasoline vehicles...
I changed the trans and diff fluids with AmsOil Synthetics when i bought the truck and the trans fluid was changed again last month when I had the Flex Plate (flywheel) replaced under that warranty....just because it was out and i had the fluid in the truck....
All I will do at 100,000 other then the coolant flush will be the spark plugs, wires and filters....
If I get that far, at 150,000 I will change both ft wheel hubs / bearing assemblies....