1995 240SX w/ SR20DET, open differential, stock size tire, and 145,000 miles on chasis.
Under hard acceleration the rear of the car jerks hard to the right when I shift into second and third. Is this caused by loosing traction because of the open-diff or worn out bushing. If bushings, which ones should I replace?

 

combonation of both ?

open diff tends to jerk 1 wheel when it doesnt get traction suddenly .

also if you have awork bushing it may just jerk for a sec it all depends .

does this jerking motion happen when shifting leisurely ? or only hard ?

 

I only notice it when shifting hard hard.