I have a bad noise coming from the rear of the cobra. I don't think it has anything to do with my new shifter, unless the shorter throw is causing it. It doesn't do it all of the time, but if I nail it in first, and shift to second, really fast, I hear a noise similiar to the same noise you hear when you turn your driveshaft by hand, and it makes contact with the transmission. only from the back of the car. and really loud. similiar to a backfire in volume. everything seems to be tight control arm wise, factory, but nothing is loose, anywhere. To me it sounds like the ring gear, and the pinion gear are banging together. I wouldn't know what to look for if I took the rear diff cover off, but I checked the fluid level, and there was a very small amount of magnetized metal stuck to the fill plug. It is missing two ring bolts, but all of the others are torqued pretty good. any suggestions. never heard this sound until I put the shifter in, but it is from the back, not under the gear box. Thanks chris