Platinum Racing Products - RD28 RB30 Dry Sump Block BraceBLACK, SILVER, GOLD, PURPLE NORMALLY STOCKED OTHER COLORS EXPECT 3 4 WEEKS LEAD TIME The Platinum Racing Engine Cradle (PREC) has been constructed from hi grade aircraft quality billet aluminum and the product has several features that benefit. Over and above converting your 2wd RB RD engine block to 4wd. With the kit provided and after a few modifications, a standard GTR type sump will bolt straight on. The Platinum Brace overlays and supports the