Originally Posted by Chris74
....I have 4 trucks with 3.7. They all have been excellent so far.......but the 4 guys driving them are guys who definitely aren't hard on a truck.
i can't comment on the timing chains as i simply don't have anything worth adding.
but as far as the differentials go clutch packs are a wearable item and ment to be replaced.
they may be replaced sooner or they can be replaced later depending on how the truck is used and driven.