spense8

Does anyone know wher i can get a rebuild kit. or a synchronizer ring set for my 8 other then the dealer.

This ad is not displayed to registered and logged-in members. Register your free account today and become a member on RX8Club.com!

ASH8

Mazda do not do "Rebuild Kits" for OEM Gearboxes..

All parts have to be individually ordered from a Mazda Dealer, if you do not want to go that path then car wrecker or junk yard for compete trans.

IF you are going to crack open your box, I suggest the following, all synchro rings, bearings, possibly change forks, input shaft seal and rear extension housing (prop shaft) seal.

Check other parts like gears and sleeves for excess wear, replace what is needed.

EricMeyer

Is your problem a 3 to 4 shift and/or 4th to 3rd?

spense8

going into fourth gear at high rpms it grinds thats it

spense8

Well it only has 55k on it my pedal broke and chewed up my clutch and flywheel, but i also started grinding going into 4th, before all this happened.

EricMeyer

I have a guy to reveiw and rebuild it if you like. I also have lots and lots of new parts for the 04-08 trans.

meyermotorsports@mac.com

A more proper (and more expensive) solution is the 09-10 gearbox. It fixes the problems inherent in the earlier model box. About $2K. Depending on how catastrophic your box is, your looking about under $1K for a build with several new synchros and 3/4 shifter fork replacement. The fix for the 04-08 box is to shift it very, very, very slowly and gently. 3 to 4 speed shifts can toast a new box in an afternoon. We use to bring 2 extra fresh gear boxes to the track when we rented our cars in Grand-Am and new drivers would toast them EVERY RACE. True.

951Rx8

my 1st gear grinds when shifting into 2nd at high rpm...what's the problem? and my car lags when starting to drive from a stop