Melling oil pumps have never let me down!!!Update 5/2/2019 5700 miles so far after install still holding great psi 42 hot idle 57-60psi cruise speed (50-70).Update

Replaced on a 4.8 has worked great never goes under 40psi even at hot idle well made and guaranteed to last a long time installing is a breeze

Engine holds 40 psi hot idle and raises to 65 psi at rpm using mobile 1 5w-30.Definitely recommend Melling pumps

Great ls oil pump