Thread: Strange 4th gear problem

my 93 disco did something similar but I couldnt get 4th at all, on pulling the top apart as prep to get the box out saw the busted tab sitting there on the selector ball at the back mechanically blocking out 4th.. pulled it and welded it and all went well till the guide spring broke then it was pretty much a lotto as to weather you got the 3/4 selector or the r/5 fixed it when I sold it as part of the sale deal.

IF that aint it then your syncro spring or clutch cone is U/Sish on fourth, changing up the gears will mean your trying to speed up the ass end of the box changing down means that they are slowing down and will help whats left of the syncro do its job. if your any good at it give double cluthcing a go and see if you can get it in.

Looked in the top of my gearbox last night, all looked well, no broken tab, bias springs ok, will just have to drive it as is for now, no time or dollars to pull box out, seems to be a synchro related problem. Discovered yesterday if speed is no more than 35kmh it will change from 3rd to 4th, but if 40 kmh or over no way will it go in, no grating or anything. Will change down from 5th, just have to alter driving style for now, either change up from third real early or rev it a bit then straight to 5th. Thanks for the help.