So my 3rd and 4th gear crunch it used to be just 3rd but now its 4th aswell if I double clutch going up gear its fine but crunches going down unless I've got the brake on a touch and the revs in a certain spot I've been told on here its probably the syncro rings or bar "cant remember what its called dont know much about it" anyway just wondering if I dont fix that is it going to do worse damage to my gearbox

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