No afraid not. Probably the best thing to do with an E46 is either use an E36 medium case rear axle for a good choice of ratios or modify the subframe and shafts to take a different diff or otherwise, an E46 M3 rear end and use a 3.91 cwp out of an E34 M5. Could use the diff center from an old 5 or 7 series to weld so that with the 3.91 and then fit the lot into the E46 M3 diff casing and sell on the M3 3.63 cwp to somebody with an E39 M5 or E36 M3 Evo road car.