rear thumping????

[DevZX]

hello, everytime i either slowly put my foot on the gas or keep my foot in the same place on the gas the rear starts to thump. when im not on the gas it doesnt make this noise. what could this be??? thanks

[Ace2cool]

Diff bushings? That's all I can think of that would thump in the rear.

[nissanfreak12]

Center carrier bearing on the driveshaft. Check that as well as the rear diff bushing, but they will really thump when you hit the gas and let off the gas with the car in gear. With the bearing, go under the car, find the shaft and if you can move it up and down, its bad.

[ChaseOfSpadeZ]

Also, check out transmission mounts.

[nissanfreak12]

Any update?

[Shoey2]

sounds like a carrier bearing, they are about 50 bucks.

[cjdubs]

carrier bearin would cause allot of vibration at highway speeds, and no not 50 bucks 130. http://www.conceptzperformance.com/Cart ... IS300&UID= when mine went out I just got a1 piece drive shaft. if it's your carrier bearing I would suggest a1 piece drive shaft. it's a little bit more but they are substantially lighter and you by pass the carrier bearing all together

http://www.conceptzperformance.com/Cart ... .199.229.8

[DankZX]

replace the transmission mount while you are under there as well.

[DevZX]

havent got it checked out yet.. i have a aluminum 1 piece shaft that i was going to install but thought if its the diff mounts couldnt it possibly bend/ damage the aluminum driveshaft???

[Ace2cool]

Nah, besides, the shaft has a lifetime warranty, if you got it from either Z1 or Shaftmasters.

[DevZX]

also forgot to add sometimes when its really cold out the car wont thump until the car heats up alittle...