do you still have the old shifter lever, I assume it is loose if your looking for another. A new one is expensive, like $40 from Honda. anyway here is what I did to mine to tighten it back up, thats if the splines are not striped out of it. Put the splined end in a vise and close up the gap, take a band saw and recut the split in it. this will alow it to tighten up more. Check ebay for the air box or box lid, they usually have a few available.