So I got my Titanium RnD shift knob looks great wanted to put it on. Well I head out to unscrew the oem shift knob and it won't budge an inch. So I grab a 14mm wrench to hold the bottom set screw and begin to twist the knob. It moves slowly as I'm expelling all my strength to move it centimeters. So after about 4 or 5 turns I snap the shift knob clean off the shaft. Luckily there are still a decent amount of threads left on the shaft and I can install the new knob but WTF it's not like i wrenched the knob on there why would it be so tight.

 

The lock nut just snugs up against the bottom of the knob. You shouldnt need to hold onto the wrench. You just loosen the nut 1/8 of a turn and then spin the knob off with your hand.

Your description makes it sound like you were physically applying pressure with the wrench. If I had to guess, you had the lock nut bottomed out against either the end of the threads or the knob. I find it hard to believe a person could snap the shifter with bare hands, it had to be misuse of the wrench.

 

Hulk smash! I mean turn... damn dude, what kind of guns do you have?

 

The procedure is to loosen the lock nut then spin off the knob.

Loosening the lock nut involves holding the knob firmly and using a 14mm wrench to turn the lock nut clockwise about a quarter turn.

 

if the broke portion in the shift knob will not unscrew now, then it was cross threaded when put on , or maybe it was screwed on and bottomed out in the knob and racked the threads together.

 

I had to use the wrench to keep the whole shaft from spinning so i took the set screw dow. And bottomed it out and then used the wrench to hold the screw which in turn held the shaft. It looks like the guy used lock tite on the threads.

 

Red loctite will do that for sure.

I have shifters laying around you could have one if you need it.

 

Ill be alright the shifter lost about 1" from the threads breaking off and 1/2" from the counter sunk knob but all in all no complaints i have a new found respect for thread lock though

 

Nothing special just M16s AK47s and a rocket launcher just in case