ok i have repaced the oil pump and bearings when drivin it is about 35 psi but when you stop it drops to 0 and this is pissing me off because if any of you have changed a pump in one of these trucks you would no why

 

Unless your oil pressure is dropping too low, this is not a problem nor is it unusual. On a cold engine, upon first start-up, the engine goes from 0 oil pressure to a high oil pressure, because the oil is cold and thicker. As the engine and oil heat up, the oil becomes thinner and the pressure goes down. This is normal.

 

A 2008 post... I'm sure the engine has been recycled and melted do to make ball bearings for my grandson's little red wagon