Hi David It's actually the secondary shaft nut that backs off. I've dredged up my photos of when I fixed mine http://www.delorean.co.uk/DCP02272.JPG http://www.delorean.co.uk/DCP02269.JPG http://www.delorean.co.uk/DCP02277.JPG On driving it, 5th was nonexistant, 4th made a racket, but 1,2 and 3 worked fine. I think it's "luck of the draw" and little to do with driving style. My car in the photos had 2353 miles on it when I bought it and this problem was the reason why! I had the casing welded up, and replaced the nut (loctite this time around!). If you find that fith is missing, this will most likely be the problem. STOP driving, or you'll do that, or worse, to the casing. FWIW though, any D owner who drives my car now comments on how slick the gearchange is. Ironic really, and possibly due to having needed new gear oil right back when I got it with low miles! Martin #1458 - in the pics #4426 David Teitelbaum wrote: >If that nut should back off you will wind up with major problems. The >nut will go through the end cover and you could mess up several gears >and syncros when the input shaft moves around. I think that this is >less common on Deloreans though, the engine isn't all that powerful. >If the nut is properly staked on and you are not a maniac with the car >it should never come loose (at least on a Delorean!). Don't forget, it >is not the 5th gear retaining nut as much as the Input shaft retaining >nut. Without it to keep the input shaft in place the input shaft can >float "not a good thing". Anyway , it is good to know that parts are >plentiful. The transmission is one of the more trouble-free areas of >the car, there doesn't seem to be all that many problems with it. Use >the braided steel clutch line, Castrol fluid (and change it every 2 >years) check the oil level once in a while and don't force any shifts >and it seems to last. The only weak points are the shift pin and the >5th gear shift fork when you abuse it. >David Teitelbaum >vin 10757 > > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/