I run a zip locker in my yota on 40's broke several longfields it's held up great. It's been very hassle free the few yrs its been in. I absolutely hate Detroit had one in a 44 broke stock shaft broke locker, had one in my buggy's 60 broke shaft broke locker, switched both ends out to Yukons and have broken a few shafts lockers are still living. The zips also don't seem to have the ring gear bolt loosening problem that the arb's sometimes have