by parasys on Wed Mar 21, 2018 8:18 pm
I am in the same boat, 2010 GLXR with 135k purchased at 95k. My issue is that it wont select third when moving down from fourth. Changing up is never an issue, but when changing down into third I have to select second or a least get it into the gate and then third is selected fine. There is no need to release the clutch in second, just slot it into the second gear gate then back to third. Double clutching and matching revs makes no difference at all.
There is never any crunching, so I suspect it is not the synchro issue. I am suspecting an issue with the selector fork or rod. My next plan of attack is to pull the box out and have a look to see if any clips, retainers or detent balls are missing. Ive done everything else on motor vehicles but never a gearbox - so am a tadd nervous. Local gearbox shop (Darwin NT) quoted $2500 for new bearings as a start point for a quote but natrualy cant give me an estimate without pulling the box apart.
I have done plenty of reading on the third gear issue and mine appears quite unique to all other posts.