need oil filter bolt

If the plate only has 4 or 6 holes in it, a free upgrade is to drill more so that it winds up with 8 holes in it, to aid drainback and reduce restriction. Try to get the filter bolt that has the hex on the outer edge, and is wide open in the center, also for less restriction. Try to get a guy at the dealer parts department to look up the number for an older truck application, as this is where they are supposed to come from. Keep on trucking!
alan627b