Alright so last night i was having some fun drifting and once i was done and going to park i heard a huge bang in my rear end, and it seems to sound like it is coming from the right side. I do have a lsd its a factory one from a GTU i believe cant remember, but it only does the banging noise when im turning and have my foot on the accelerator, if I am in neutral it doesnt happen. My car is all stock besides for kyb agx struts. i looked under the car and nothing seems to be broken or bent. Im gonna drain the fluid once i wake up tomorrow, and maybe thatll help it. Please help! My car is also an 88 vert if that is of any importance.

 

inspect the rear end before you even drain the diff.
It may save you Gear oil.
I'd be looking at the diff mounts,DTSS bushings,Half shafts,etc..not just the Diff.
...
on another note,I thought this was a thread about Farts..I was gonna suggest a gas mask!..(Help..gag.. huge noise in the rear..lol!)

 

Lmao does sound like it could be, but what would be the best way to test and see if the bushings are good or not?

 

hahaha I don't care how old you get, farts are always funny!

 

Get the car up on stands and start checking for something loose.
It's probably the diff.

 

Alright gonna try that today.

 

Alright so I couldn't get the filler plug off so I wasn't able to drain the diff, but everything is good and their is no play in the yoke or anything so assuming its the diff.

 

Front differential mount probably split. You cant really tell till you drop the front of the subframe and remove it. Competition Mazda mount is $107 if I recall from racing beat.

 

I'm getting a whole rear end off an 88 gxl for 200 so that'll probably stop it.