Hi thought id create a new thread so someone might notice. I recently broke my 1st gear, really strange as i was going very slowly over a speed bump. as i put it in 1st there was a loud bang. Checked with realoem to see if other e46 model 323/320/325i etc are the same. Everything seemed the same. Bought a new box from a bm specialist breakers , gave them my chassis no etc to match it up. My mechanic has fitted it and then had to take it out again where he noticed the spline is a different length. Does anybody know about this problem, is it just my car?