oneEg1Tc

My. 3rd gear grinds at high rpm . I'm. Still trying to Figure Out What's wrong with it. I changed the clutch due to some advice. But. Didn't. Work. Do I need to change the tranny.?

TravisCadello

welcome to the world of shity tranmitions lol. My 3rd gear started like that now is nomater how early or late i shift it grinds. the syncros are bad in the tranny. pretty much u need a new tranny but it will last a long time from now.

I'm trying to run some better oil for it to go away ill let u know if it fixs it.

infinitypro12

Not really crappy transmissions but that is aside the point. 3rd usually is the one to grind because it is ridden the most. Try to push the clutch in, pop neutral, clutch out, clutch in, grab third. See if that at least helps until you can get it to a shop, unless you feel like replaceing the syncros.

roadsqueegy95

yep as stated before its the syncros, i had this happen in my del sol vtec! its annoying as hell

TravisCadello

Hell yea its annoying. I'm gunna try some Gm Syncro oil people say it works.

oneEg1Tc

I tried the Gm syn and been running. In them for the past 2 weeks but still grinds. And. I guess will have to. Rebuiltt the tranny. Or buy a new. One . Does anyone know a good place and affordable ? By the. Way its a b16 thanks

JohnnyWash1

If you are already grinding at every RPM, no fluid will cure it. You need new synchros. Sometimes it is cheaper to purchase a used tranny. However, if you are going to rebuild the transmission, take the time to put in all new synchros and decide which gears you want--if you are all-motor but DD your car, many people would say put the LS fifth gear in your transmission.

TravisCadello

so pretty much if my tranny grinds no matter what in 3rd gear no oil is gunna fix it? i should just put cheap **** into it?

oneEg1Tc

I tried the Gm syn and been running. In them for the past 2 weeks but still grinds. And. I guess will have to. Rebuiltt the tranny. Or buy a new. One . Does anyone know a good place and affordable ? By the. Way its a b16 thanks

JohnnyWash1

Yes. If you are planning on rebuilding/replacing, put the cheap stuff in as it won't matter.

oneEg1Tc

Thanks. I guess will. End up. Rebuilding. The tranny. I. Don't wanna risk it by buying a used. One with the same problem

TravisCadello

I'm reading some **** right now that this Gm Sycromesh works great! this one guy skipped 3rd gear it was so bad and half the time it wouldn't wanna go into gear and he changed it and now it dont grind at all!

JohnnyWash1

I would be wary of anecdotes like that. It is simply not plausible that a fluid could cure a damaged sychro.

TravisCadello

I guess I'm gunna find out tommarow. at $17 a quart it better be good. the part number is
12377916 and can get it at any chevy dealership. Gm Syncromesh (friction modified).

TravisCadello

you should read some of this stuff I'm reading. the Honda MTF IS nothing like Gm's Syncromesh.

https://honda-tech.com/forums/showth...=549469&page=2

google results gm is so much better.