I did and broke the tranny mount. I could hear the driveshaft hitting the underside

 

I think you're going to find the common response to be:

Duh.

Why would you do that?

 

Wow...that is some hardcore LT1 tech...

 

and dont shift into park while, your car is rolling even a little bit

 

The best thing to do would be to come to a complete stop before even pushing the button to move the shifter. Defying this could ruin u joints, tranny mounts... shift linkages etc.

 

Sounds more like you broke a u-joint if the DS is hitting the underside of the car.

 

You should be glad that your tranny mount is the only thing that broke. You won't do that too many times before more serious damage is done.

 

Yeah it was dumb. I looked under it though and saw the mount is cracked. The driveshaft is ok. I'll never do that again. I was just posting so maybe someone will see it and avoid doing it when they're in a hurry.

 

am i the only one who cringes when I see someone slam it into gear while the car is rolling?

 

Sounds like someone was trying to pull some cop manuver or something lol

 

my bro does this all the time in his 2001 or 2002 grand am i cant remember but still i cringe when i watch him do it but then again i am waiting for him to mess somethin up..hes a brother and he is a real d1ck

 

Dont go from reverse to drive either...my dad had a bad habbit of this in his squad car that had a hopped up LT1 in it and that was part of the reason it ate up 4 tranny's in 150k miles.

 

Yeah, here is the hot ticket for huge burnouts.
Get on a hill and put it in neutral, let the car roll backwards now rev the SH** out of it and drop it into drive.
You will get to see what the parts inside your tranny look like after they come shooting through the pan.
This is a sarcastic comment, please do not try this at home.

 

Good, disclaimer, cause you know someone would!

 

It doesn't hurt it if you're moving slowly going from reverse to drive. I do it all the time, but from the talks in this post, it sounds like you guys see people going 20mph in reverse and slamming it in drive and mashing the gas. That's a big no no. Haha. When I go from reverse to drive, I'm going like 2-3 mph. There is no way I could come to a complete stop, shift, and wait for the tranny to electronically shift it's slow self, besides, if you do it right, it goes into gear just a split second after you're pretty much stopped.