Mag-Hytec pans and covers

The primary reason I purchased this cover is because my stock differential cover didn’t have a drain plug. Since I had to pull the cover off to change the fluid, I decided to spring for this cover and make future fluid changes much easier. The added fluid capacity is nice, but there’s a catch. From everything I read online, the basic rule on differential fluids is to never fill above the stock fill plug. With this cover, I got one additional quart into the diff (4.5qts) before the fluid started pouring out the stock fill plug (located on the axle). Turns out the only way to get the full advertised amount of fluid (6qts) into the diff is to cap the stock fill plug and use the full plug on the cover

All Mag-Hytec pans and covers are cast A356-T6 aluminum and have O-rings that seal the pan/cover to the housing instead of using a gasket. The differential covers feature a dipstick that does not get in the way of any differentials or gear ratios