Hi All, I'm curious as to how much diff oil volume y'all run in your rear axles to adequately ensure that there is sufficient oil present to cover pinion\ring gearing & bearing lubrication along w\ sufficient cooling while running on track. Do most just do the fill until you spill thru the fill plug, or do you fill to a specific oil volume amount? If you do use a specific oil volume amount, what is it (OEM is 4.25 pts or 2 qts 4 oz which should equal the fill\spill IF you're running a Trac-Lok diff), especially if you're running a diff other than a Trac-Lok (creating different displacement area)? I ran across this YouTube video from Richmond Gear which at the 9:30 thru 11:00 time section, it mentions a recommendation for circle track racers to intentionally overfill the rear axle to offset the centrifugal forces that deposit diff fluids into axle tubes (probably has a lot to do w\ oil getting spit out of the axle vents mounted on the axle tubes) to ensure that ring\pinion gears & bearings (LSD friction clutches as well) don't get starved of oil, but doesn't say as to how much: Richmond Gear - YouTube Any insight given here is greatly appreciated as I've never heard of doing this before but from viewing this video, this is a thing & from doing a search here, no info turns up so I'm inquiring. I can see this being common on long freeway runs at higher speeds as well as on long sweeping straights at the track is why I'm posting.