I never ran the actual Jomar brand but I've been running stud girdles for years and I think I've broken two valve springs in that whole time.
I know this, I've seen a lot more breakage with these super duper shaft rockers than I ever have with my stuff. Yeah, I don't run a ton of lift but it never fails they're always announcing from the tower, does anyone have a spare shaft rocker for a BBC. Joe Shmoe has a broken one and needs some help.
Clowns to the left of me, Jokers to the right. Here I am.......
Posts: 5256 | Location: stuck in the middle with you! | Registered: March 11, 2002
Vern, prior to 2008 all I ran was Crane Gold stud mounted shaft rockers without a girdle and I never broke any valve train component.
Since '08,I've been running shaft rockers. Started with entry level Jesel Sportsman which the nose wheel axle walked out one night and luckily the rocker didn't release the valve locks and I found the wheel and axle. Moved to T&D shaft rockers for the 2012 season and have yet to break a rocker but I do have spares just in case.