Those Darlington differential lowering brackets look AWSOME! The $189 price tag isn't bad either IMO as I had quite a bit of time in my set I modified from stock... NICE! My only problem would have been with only 1.5" of drop, they wouldn't have given me enough space for my LS1 to clear... I would have had to REALLY modify my oil pan if no go to a dry sump system! Anyway... nice product!