6th Gear Grind & Replaced Transmission

[Bonburner]

So I've been having a grind on 6th gear for a long time I think since 5k miles or so.
I took my 86 in at 14.2k miles and I demanded they take apart my transmission and they said come back when toyota reps come.
They said that if there is no problem it would be $1000.00 labor charge - I told them take out the transmission there Is something very wrong.
So my 6th was damaged - it looked fine but a few of the teeth were chipped.
The worst was the synchros - apparntly my synchros were shot somehow.

Toyota agreed to take it out of their pocket on a replacement transmission - they said this was not warranted repairs.
But it seems that we have a lot of "grinding" issues on these forums.
They claimed that I was shifting too aggressively to which I had a blank face to their response.

We'll see how long this transmission lasts ..

[Dezoris]

Originally Posted by Bonburner

So I've been having a grind on 6th gear for a long time I think since 5k miles or so.
I took my 86 in at 14.2k miles and I demanded they take apart my transmission and they said come back when toyota reps come.
They said that if there is no problem it would be $1000.00 labor charge - I told them take out the transmission there Is something very wrong.
So my 6th was damaged - it looked fine but a few of the teeth were chipped.
The worst was the synchros - apparntly my synchros were shot somehow.

Toyota agreed to take it out of their pocket on a replacement transmission - they said this was not warranted repairs.I
But it seems that we have a lot of "grinding" issues on these forums.
They claimed that I was shifting too aggressively to which I had a blank face to their response.

We'll see how long this transmission lasts ..

Did you skip gears when shifting? Ie going from 4th to 6th? Or 3rd to 6th?

[Bonburner]

Originally Posted by Dezoris

Did you skip gears when shifting? Ie going from 4th to 6th? Or 3rd to 6th?

not often - the few times i did I would wait to rev match

[hmong337]

I wonder if all these grinding gear threads were really user error and not the gearbox itself...

[ZionsWrath]

You gotta be moving pretty fast to aggresively shift into 6th lol

[Young_makaveli]

Is your frs a 2012 or 2013 manufactured one ?

Im at 14xx km and have no issues

[boxer 2.5]

Yeah a grind in 6th? definitely not user error. Unless you're sitting there without the clutch pushed just jamming it into gear going 110 on the highway for funs.

[Bonburner]

my sig says when I got the car - the first month they were sold lol

i was averaging 28 mpg btw lol
i didn't shifted aggressively - almost always casually

never had the opportunity to track/hdpe/autox

[Young_makaveli]

Originally Posted by Bonburner

my sig says when I got the car - the first month they were sold lol

i was averaging 28 mpg btw lol
i didn't shifted aggressively - almost always casually

never had the opportunity to track/hdpe/autox

Sorry on tapatalk lol

[ZionsWrath]

My car is in first 1000 vin. Dont notice any trans problems so far, at 20k miles

[Sporran]

Originally Posted by Dezoris

Did you skip gears when shifting? Ie going from 4th to 6th? Or 3rd to 6th?

I'm not sure why that should even be an issue - my belief is that if the synchro's can't handle skipping a gear they have no business being in this gearbox in the first place.

The ratios are quite closely spaced so why should going from say 4th to 6th in our box be any different from going from 4th to 5th in a less sporty 5-speed vehicle?

I know there's many threads on this issue and many differing viewpoints too - I'm just trying to get a better understanding of what's going on with our gearbox.

I've been driving manual transmissions for over thirty years and never experienced anything like the issues this gearbox appears to have.

[MIKE_909]

I've had my trans replaced because of the synchro going out car was at 10k mile if anyone comes up with why there messing up that would be great news being I don't wanna have this problem again being they were a little stubborn to fix it in the first place

[Rayme]

Looks like just a bad batch of transmission, like everything else alot of people have no problems with it and others have weird problems like a 6th gear grind. Sound like a bad assembly, improperly pressed in gear or something like that...I mean a chipped 6th gear tooth? Sounds like something was binding, NOT being abused.

[Mikem53]

Originally Posted by Dezoris

Did you skip gears when shifting? Ie going from 4th to 6th? Or 3rd to 6th?

That not going to cause an issue.. That's BS..
My corvettes, both with a T56 and the TR6060 had CAGS
Which would force the shifter from 1st to 4th gear if you were under
A certain speed. I also skip gears in this car with no issues. That's never
Been an issue with manuals.
There is something wrong with this tranny in its build from the factory..
They have some defective parts or are built with bad tolerances..
Skip shifting is common and not harmful unless there is something defective.. These trannys are not that fragile..