the later aftermarket dampers/tensioners that are a solid drab grey without molding swirls tend to be more durable than the swirl dampers that chip apart along the striations...

always run a new set oem/cloyes gears and chain

a new chain on worn powdered metal gears has too much slack

broke an oem chain with 105's on a VS...wasnt pretty

double roller properly machined is bestest