i ran my stock birfs for 4 years locked up front running 35's. and finally broke one doing something stupid
.
then i put on 37's and broke one almost every trip.
then i put in the ringed longs and 38's and broke one ringed long after like 20 trips and twisted the splines on another.
now i have the 30 spline chromo longs and they have not let me down, even with me trying to kill them at the hammers.
derek