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4th gear synchro issues 2010 clio gt

  Clio gt, hyundai i30
Hi guy, im new to the forum and would like some help if possible. Ive owned my 2010 gt for about 12 months now but the gearbox has started to grind when going into 4th. After a quick Internet search it looks like the synchro is on its way out. Q1. How hard is it to replace the synchro?
Q2. How hard is it to find replacement synchros.


ClioSport Club Member
It's gearbox off and send it for a rebuild, thoroughly inspect the flywheel and new clutch kit on when you re-install.

Not cheap.


ClioSport Club Member
  Clio 172
I've seen estimates for a 197/200 gearbox rebuilds of around £850 for a drive in, drive out service, including clutch. My clio 172 gearbox was a smiliar amount.
The problem is that the longer you leave it, the more metal is circulating in the oil and damaging the bearings and other gears.
@NorthloopCup is an expert on gearboxes, and rebuilt mine when it was in at AW motorworks.