Ive read that part of the site many times, i know the corbeaus will fit with drilling, but im asking about what seats fit the brackets themselves. What I want to know is are they universal mount (on seat end) or do they need to be modified to accomidate different manufacturers... i know the suburban seats will work but just trying to get a feel if any later model (preferably the 99-06) seats will work... thanks for any help.