I just bought a '96 240sx SE.

It has 85k miles, and it drives pretty good for a 9 year old car.

One problem that I noticed is that when I am shifting (i.e. 2nd -> 3rd) while the car decelerates, the rear diff area makes a clunking noise.

It only happens when I'm off throttle (i.e. weight shifting forward). It never happens when I'm on the throttle (i.e. weight shifted to the rear wheels).

It also happens when I'm in a gear (i.e. 4th), and cruising at a constant speed... then when I let off the gas quickly, it makes a clunking noise.

Is there a bushing on the rear diff? Anything that I should look for when I jack up the car?

TIA.

-Sean
p.s. Do they sell factory service manual somewhere on the web? (i.e. Helms or Bentley's)

 

there is actually 4 bushings where the diff mounts to the subframe

 

its your subframe bushing have those changed or add spacers to eliminate the thump.

 

Thanks, I'll have them check out. I take it that it's gonna be a ***** to have it changed due to its location. Oh well.

 

Actually, i just added spacers to mine. Took me an hour its really simple.

 

If it's the SE and has ABS...it probably has LSD. That clunking is the LSD if you have it. It's normal and shouldn't be worried about.