Im running hamilton extreme duty pushrods. It appears the tear starts just beyond where the adjustment stud goes through the body. Its a new build, but the old rockers have been through a lot. Including a runaway resulting in a bent stock pushrod and broken lifter. Im considering scraping all 6 and putting on new stockers, as I dont have the funds for an SMT system and am not convinced the Harlands are much better than stock. I would appreciate opinions.