Im gonna guess thats what it is, when i can it from a dead stop, something smacks the underside of the cab. Still runs, just cant get on it like I like to do usually. Anyone know prices for parts such as these? I cant remember off hand the model of the case though....Prolly would help.

 

If it is the tranny mount that is busted, which it sounds like it by your description, then it is 14.01 at Rock Auto plus shipping. easy to replace too. Four bolts and a jack. About a ten minute job.

 

the mount doesn't have to be broken either, get under there and check the condition of the rubber, if its stiff then it could be loose bolts and if it feels like a gummy bear then you should replace it and it'll all be good. my camaro had a gummy bear like tranny mount and the transmission smacked the floorboard if i hit it from a dead stop. changed it and its good now. i know its a different vehicle but the mounts are similar.