I only bent one upper arm turnbuckle in almost three years with this car... I have bent a lot of kingpins and lower hinge pins though
I am afraid if you get a stronger turnbuckle the arm will bend instead of the turnbuckle with a good hit. If you havent broken a rear belt, you will
I change mine every few race days. The pin in the two speed hub will also work its way out especially with the modded 5 ports we run
so keep a eye on it. The car is really pretty tuff with a PDub front bumper (a must have) the only real weak area is when you take a hit from the rear... the rear toe links will break or pop off or the ball studs will break... I played around with a rear bumper last season for a while.