Renesis1300

Hey rotorheads, I have a '04 6-speed 8 that grinds on 2nd gear. Here's the thing though, when I use it normally, it shifts like butter. But when I redline it on 1st and shift to 2nd, it grinds. Does anyone have an explanation for this? Thanks...

200.mph

iTrader: (9)

its pretty common. bad syncro

Renesis1300

What can I do to fix the problem? I'm still new to my RX-8. I've had it for 3 months now, I'm loving it!

200.mph

iTrader: (9)

some people report changing trans oil can help some but it really wont fix the issue. you can get it rebuild or buy another trans

Renesis1300

So is this a problem one causes or is it like that from factory? Because I read in the manual to not redline 1st gear because the clutch might not work, or something like that.

200.mph

iTrader: (9)

abusive shifting on a trans over 10 years old. parts wear out/break/fail, its life.

Loki

iTrader: (1)

The use of a GL-5 oil can also damage the synchros. You can try fresh trans fluid, like a Redline MT-90 to improve it, it could help. Otherwise invest that money in a known-good trans.