So I was driving today... and I was sitting behind a cable truck working on lines, so I pulled around it and accelerated pretty hard, and heard a huge CLUNK! from the rear of the car. I just thought I ran over something.
And then it did it again later.
So I went around my neighborhood trying to see if that was the problem, and yeah, everytime I'd hit the gas hard from a standstill, I'd hear a clunk from the rear end.
Driveshaft? Rear diff mounts? Gears??
HELP

 

Answers in order...probably not, maybe, maybe. First thing I would check is the trans mount. If it's torn, the tail of the trans WILL lift and hit the tunnel due to the lifting force of the torque arm. Then the tail of the trans hits the tunnel, and gives you a “clunk” sound. If it's bad, replace it with a poly mount since they have an interlock that won't separate. (cont...)

 

check to see if the bolt in the torque arm fell out the same exact thing happened to me

 

Jack up the rear end, and spin the rear wheels. If its in the dif, you will hear it. If its a bad trans mount and the trans hitting the floor, you will def know it.

 

Alright cool thanks for the help
first let me see if i can post...

 

Okay well if THIS can post then I'll be surprised. But anyway I put it up on ramps and the torque arm looks fine, and so do the mounts (well the rear end mounts, idk bout the trans mounts.)
I'm thinking its the gears =[
But I'm taking it to a professional soon anyway, I know a guy thats really good
But until then I'll just have to avoid high acceleration from a standstill.

 

I can actually atest to this, my Iroc did this and all it was is a 10.00 trans mount. Trust me it hit hard underneath only when I mashed it though. I heard to get the neo-prene" spelling, at Summit and not the factory ones or you'll just keep breaking them.

 

i love you.
yeah thats it, lol
the one i ordered was $16 though