ive got a little metal plate (bought off ebay for £6) what you do is slacken off the rod where it comes thro the bulkhead, this plate holds the gear stick in the correct location so all you do is tighten up the 13mm selector bolt and you will have a perfect gear change, if you want i can lend you the plate, also do you have a wieghted selector rod? if you dont ive got a spare and by fitting that as well makes it spot on perfect