okay my car is completely( except the sig.) stock as far as i know its original with all 75000 miles on it. i have 6, 1/8 miles passes on it and every once i awhile i take off pretty hard on the street. so tonight i am leaving a friends house and when i turn out of his driveway i punch the gas. right as i did that something under the car, right under the shifter , banged into the floorpan. i thought i felt it but wasn't sure, the radio was on and i just kept going. so later on tonight i was pulling out of a parking lot and it hit hard enough to bounce a can in the cup holder. so i babied it home. it only hits when i accelerate and it dosen't have to be a foot to the floor either, just enough to get you going easy can make it hit. any ideas what this could be? i looked under to see if anything was hanging down. i am kinda thinking the rear tranny mount is shot and letting the tranny hit the floor, but the mount is still bolted to the crossmember. mabey the torque arm mount to the tailshaft? if you have any ideas shoot them my way please. i am going to try to get it on the rack at work tomorrow but i don't know if i will be able too.

 

More than likely, the tranny mount.

 

yeahh its the tranny mount, get a new one and do it in your driveway with some jackstands

 

Yeah, I am pretty sure it is the tranny mount. Mine did the same thing, it is a terrible sound!!! The mount was only like $40 and it was really easy to install.

 

Yup same thing happened to me like 3 months ago....Definately the tranny mount.

 

!!!!SO THATS WHAT I HEAR FROM UNDER MY CAR!!!!

But I have an Automatic Trans. I havent looked under the ride but how would I bust a mount if I have an Auto Tranny? Anyhow, I guess its a mount huh.......

 

yup it was the tranny mount. my cost at work was 36 for a factory replacement, but i went with the autozone lifetime garranty for 26 bucks. my car is and automatic so that is prolly your problem, Tires_Smokin. thanks for the help everyone. and it was VERY easy.