last night, i finally got around to swapping out the oil pan that came w/ my LS3, w/ the F body pan. it's supposed to be a corvette setup- pan & waterpump. anyway, today i'm cleaning the oil from the original windage tray and pan, and i noticed this part on the vette pan, that i don't recall the fbody pan having. i'm wondering if i should have transferred it over from1 pan to the other. it's the part the pencil is pointing to in the right side of the pic. i got the pan as a pkg. from Pace Perf. f body oil pan, windage tray, oil p/u, all new bolts, dipstick and dipstick tube. not sure why they went w/ the 3/4 length windage tray. the other one had a full length tray, and w/ a little mod to the oil p/u mount, it would have fit.