NHRA rules require an SFI Spec 4.1 Transmission Shield for auto trans cars running 10.99 or below (6.99 in the 1/8). Is anyone using an SFI tranny shield? If so, where did you get it and how much?
there are some companies that make trans blankets. we used to use these before the shields were accepted by NHRA.
as for a shield i would order one for a large trans like a TH400/350 or C6 and make the rest of the brackets to mount it.