Did my diff die?

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dustyk
Posts: 276
Joined: Wed Jan 28, 2004 3:35 pm

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Ok, so first off my car has a 2 way KAAZ LSD in it with maybe 10k miles on it. Yesterday Im driiving on the highway and the rear end of my car starts to make a vibrating grinding sound ONLY when I let go of the gas. The car didnt make any sound at all unless I got off of the gas. Since the sound changed depending on speed, I figured something is wrong with my diff. So I change the oil, nothing wrong with the fluid, no metal or anything. I tried driving my car to pepboys today for some brake cleaner, still did the same thing, On my way home though, things get worse. Now the whole rear end of the car vibrates when I step on the gas hard. The strange thing is, everything is perfectly fine as long as I depress the clutch or put the car into neutral. Im guessing that my KAAZ diff has either killed itself or somthing else is wrong in there. Anyone have any ideas? Also, if this is my diff, is it the KAAZ unit itself or possibly something else???


dustyk
Posts: 276
Joined: Wed Jan 28, 2004 3:35 pm

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Well, just to make sure I swapped in my stock diff to see if that would take care of the problem. Still, the problem is still there, and I have no clue what it is. The whole rear end of the car just shudders if I step on the gas at almost any speed. Ive been told that it might be my hub bearings or CV joints. Anyone else have this problem>

s13sr20chris
Posts: 4148
Joined: Tue Jun 10, 2003 9:32 am
Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
Contact:

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with the car rolling clutch in, does it mess up?

dustyk
Posts: 276
Joined: Wed Jan 28, 2004 3:35 pm

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Ok, I finally figured out the problem, and it was my axle. Everyone told me to jack the rear of my car up and try turning the wheels to see if the axles or hub bearings made any noise. I tried this but I didnt hear anything. I finally figured it out when I just grabbed the axle shaft and tried wiggling it. One side, the CV joint just came rigt out when I lightly yanked on it.



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