This just happened for the first time the other day, gears 1-4 shifted like butter and it's like 5th and 6th gear are not even there. It went into reverse just fine. After pulling over and checking things out, I got back on the road and now it was locking me out of every gear, I had to use some force to finally get it into gear. I played with the linkage, but it did no good. Now the car is locked out of all gears.

Anyone with a 6 speed experience something similar? This came totally out of the blue. Car only has about 7600 miles on it and I don't launch because I am on the stock clutch still.

 

Huh sounds like linkage is binding up but have you tried adjusting the clutch rod out a little? If so, It may be that the 58 trim is just too much and roasted the stock clutch

 

I'm having a tough time with 2nd and 3rd mostly with 5th being an issue every now and then. But yes I have to force it into gear like you do too. At the moment my car has about 16900 miles and the issue started with going into 2nd gear when the car had about 1500 miles then 3rd and 5th gear issue started a little after 12000 miles. My car is still completely stock and no launches.

It's odd though as it comes and goes for 3rd and 5th but 2nd gear always feels locked when you first drive the car so there's always a hard "clunk" whenever going into 2nd. I typically allow my car to warm up for about 4-5 mins prior to driving. Lately I've been noticing that 4th is starting to feel more notchy than normal.

 

That happened to my 6spd after about 6kmiles with my ACT kit. It locked up so bad, it wouldn't come out of third. I had to drive around like that for about a week, and a max speed of 50mph

 

Syncros baby, comon problem, very important to not go crazy banging gears in every corner, or one will pay the price of replacing syncros.

 

6 speed trans is total junk remove it and get a built 5 speed and you should be fine for a long time