Moy;1660732 said:IIRC the Group A Supra used a chunky (but light) magnesium differential housing?
that just looks like a stock coated housing with a brand new -AN fitting tapped into it...
I can't verify that, but the cool little strip on that differential will change colors based on temperature. Looks like a pretty serious race piece, so I doubt an amateur threw it together. Keep in mind that a few non-factory teams raced Mk3's in different series, and there's no guarantee that the cars all had magnesium diff cases. Teams will test parts and change setups often, so there's no telling what was/wasn't used on a car at any given time.