Mike Jenkins Posted September 30, 2013 Share Posted September 30, 2013 Hi All, I've been investigating the backlash in my lt85/lt230 combo. I can see that the splines are worn - especially on the transfer box end. The main gearbox end is worn too, but maybe not quite as badly. (pictures if you click the links). Having no idea how bad is bad, and there's a good worrying clonk on gear change... Can I get away with just a new transfer box input gear (which is cheapish and easy), or is it a waste of time and I should save up to get the main gearbox done too? Cheers for any advice/comments! Mike Quote Link to comment Share on other sites More sharing options...
Tetsu0san Posted September 30, 2013 Share Posted September 30, 2013 That doesn't look too bad to me, I have seen far far worse. Really bad is totally worn through and you have no drive (I have never seen this myself) and very bad is worn to the point that the spline looks like a shark fin. But if you get a new input gear the slack will still be there and will wear the gear prematurely anyway, so the only real solution if you want to eliminate it is to replace that and the output shaft on the gearbox. However, worn bushes, diff play etc will also play a pretty big part in the clonk, especially the bushes that attach the radius and trailing arms to the chassis. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 30, 2013 Share Posted September 30, 2013 No, not bad really, this is bad: http://i438.photobucket.com/albums/qq109/series3100/IMGP3042.jpg Clonks are tiresome to track down, but I would start with prop UJs, drive flanges/half shaft splines, a-frame ball joint and then backlash in the diffs. Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted September 30, 2013 Share Posted September 30, 2013 I see your bad and raise you .... In fairness that's on an R380 hence the unworn part. As has already been said there is little point changing just the transfer box input gear (unless you have an r380 gearbox) Quote Link to comment Share on other sites More sharing options...
Mike Jenkins Posted October 1, 2013 Author Share Posted October 1, 2013 Thanks for the info. Not that bad compared to some of the others! I've already done all the bushes, the A-frame joint, and the prop UJ's, so I'm pretty sure that they're ok. What's the norm for diff backlash? Could certainly be that, although I would have said that my clonk was under the seat box... Cheers Mike Quote Link to comment Share on other sites More sharing options...
Rangy35 Posted October 1, 2013 Share Posted October 1, 2013 Check half shafts and hub members, they contribute to the clonk, and as already said do it properly....once. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.