creeking when at begining of acceleration and on turns

[Guest Joe017]

it have a '72 240z all stock.. and at the begining of my acceleration right when the cars rear drops down a bit i hear some creeking coming from the rear of the car.. this also happens on turns. this is probly a simple fix problem im sure. can anyone help me?

[David K]

my front end did that until i changed the control arm bushings.

[Guest Joe017]

alright... ill replace the bushings and see what happens

[Drax240z]

Its probably chassis flex. Often the interior panels in the rear of the Z will rub each other as the unibody flexes, giving sounds as you describe.

 

However, a littlle more description of the problem wouldn't hurt... are we talking sqeaking with driveshaft revolutions? Could be your diff, u-joints, etc. Best bet is to jack up the car, do an inspection of the rear, check u-joints, bushings, etc. If the sound is coming from the interior of the car though I'd suggest adding a cage/strut tower bar in the rear to stiffen things up.

[Tim240z]

Yeah, does it make the same creeking sound when entering a driveway, or other uneven surface? I bet it's the chassis(unibody) twisting.

Tim

[Guest Joe017]

Drax240z, it does sound like it could be coming from the inside of the car. it also creeks when in turning. so a strut tower bar would help me out... well, i am going to change the bushings and get a strut tower bar. if u recomend a specific type please let me know.