Normal
A YESB The ribs on the cover reinforces and is stronger than the stamped steel O.E.C It's to add diff cooler for racing applicationsD Define dirty, about 2 quarts come outE Do it the driveway with an oil pan, no lift needed, follow the Youtube vidsPersonally I use this one[URL unfurl="true"]https://www.holley.com/products/drivetrain/differential_covers/ford_9_75/parts/41298[/URL]
A YES
B The ribs on the cover reinforces and is stronger than the stamped steel O.E.
C It's to add diff cooler for racing applications
D Define dirty, about 2 quarts come out
E Do it the driveway with an oil pan, no lift needed, follow the Youtube vids
Personally I use this one
[URL unfurl="true"]https://www.holley.com/products/drivetrain/differential_covers/ford_9_75/parts/41298[/URL]