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Toyota86.ir · 11-06-2015, 11:07 AM

I swapped to Final Drive 4.88 and now the car not passed 100miles ,
diff assembled very good and I hear no noise in straight line but in sharp turning at very very low speed (strating to drive from 0km/h) i hear bad knocking noise , lap lap lap lap lap ...

my car has LSD and need LSD additive in gear oil , i use addinol diff oil that has no LSD additive.

My car idle rpm increased to 1100rpm by my tuner (moto-mike) and the output torque of my car (stage 2 NA) is 15% higher than stock brz .

any idea for removing the noise?

Diff assembly adjustment ranges:
2 N.M torque in pinion preload (toyota service manual recommend 1-2 N.M range)
0.00430 in. Backlash (Toyota service manual recommend 0.00512 in. - 0.00708 in. Range)

The tooth pattern is so good in the range.

11-06-2015, 11:07 AM	#1
Toyota86.ir Mike Tune HKS E85 FD 4.88 Join Date: Jan 2015 Drives: Toyota GT86 AT NA Stage 2 Location: Tehran Posts: 172 Thanks: 213 Thanked 35 Times in 27 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	Knocking noise from LSD after FD swap I swapped to Final Drive 4.88 and now the car not passed 100miles , diff assembled very good and I hear no noise in straight line but in sharp turning at very very low speed (strating to drive from 0km/h) i hear bad knocking noise , lap lap lap lap lap ... my car has LSD and need LSD additive in gear oil , i use addinol diff oil that has no LSD additive. My car idle rpm increased to 1100rpm by my tuner (moto-mike) and the output torque of my car (stage 2 NA) is 15% higher than stock brz . any idea for removing the noise? Diff assembly adjustment ranges: 2 N.M torque in pinion preload (toyota service manual recommend 1-2 N.M range) 0.00430 in. Backlash (Toyota service manual recommend 0.00512 in. - 0.00708 in. Range) The tooth pattern is so good in the range.