Rear Diff noise
#1
I have WRX 94 with a STI 1 engine fitted with RA type b gear box.
A noise at the rear of the car happens when I slow down in gear.
This only happen then and not when under load. this is a 4:1 diff.
I noted that the RA may have a different ratio diff. Could this be the problem or is the diff worn out?
I've put the car up on a ramp and this is not the wheel bearings.
Any advise please...
A noise at the rear of the car happens when I slow down in gear.
This only happen then and not when under load. this is a 4:1 diff.
I noted that the RA may have a different ratio diff. Could this be the problem or is the diff worn out?
I've put the car up on a ramp and this is not the wheel bearings.
Any advise please...
#2
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If you have simply checked that it's not the wheel bearings by trying to rock the wheels, it doesn't work.
I had a rear wheel bearing making a racket, but without any play in the wheel. Replaced bearing and noise gone..
I had a rear wheel bearing making a racket, but without any play in the wheel. Replaced bearing and noise gone..
#4
If its rear Wheel bearing take it on a road with some L and R hand bends on it. If it is a bearing you will hear it come and go when you go around either a left hand bend and a right hand bend as bearing loads up with sideways force off bend. Always works for me.
Hope it helps.??
#5
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I would certainly check that your final drives match. I'd have to check, but I don't recall the 4.111 being fitted to the RA's. IIRC, they are either 4.444's, or 3.9's on the early cars.
Mark.
Mark.
#6
Any more info on the diif ratios would help, I have the chance to change the 4.1. On the www.sidc.co.uk/faq.htm. section 2.2.3 WRX/Sti cars states 4.44:1. but later model.
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