Hello all , new to forum and have a question . 1997 z28 with 177000 miles on it , at full throttle approaching 5000 rpm I get bad vibrations from floorboard. Engine and tranny otherwise run fine . Is this a bad driveline or something else? Only repair shop in my little southern city leaves a lot to be desired. Thanks for any help or suggestions .

 

is it doing it in all gears including neutral?

 

happens from tranny being placed in drive ( { o/d } and full throttle in in first or second gear . Haven’t held pedal down until high rpm in third or overdrive { 4th } . I’m not sure if it’s driveline or something else. It’s smooth until it’s not , it’s a bad vibration . Only happens as it’s at redline before tranny up shifts . Thanks for your reply , I’m not even close to being a wrench .

 

do you know if you have a two piece driveshaft? has the transmission mount been replaced with poly mount?

 

out of town at this time , check when I return.