Clutch or differential Problem? (1996 240sx)

[KAmakazi]

Ok i have a new set of tires so i figured id burn down the old ones for a nice little video. I rev the rmps up to about 4500 and drop the clutch was watching behind me and couldnt see smoke after about 5 seconds, i was like wtf is up w/ that and let off the accelerator.

I watched the video of the "burn out" and my right tire spun for a few seconds and the left one did not when it drives just fine andshifts fine at high rpm's.

what gives this a r. diff problem or is the clutch not able to hold the load?

any input would be great and if you need more clarification just ask.

[180fan]

it's an open diff.