Quote:
Originally Posted by kirkbar
I got this same noise when I installed the M3 subframe bushings. It goes away once the diff warms up and/or once it gets warmer out. Some diff fluids are noisier than others too.
I'm going to order one of these as soon as my M-Factory diff comes in - can't wait!
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Thanks for your feedback. I did put fresh thick 75W140 diff fluid in the pumpkin as I hit the track often from late April to late October. The fluid I sucked out was the same weight but had on full year of track and street use. It probably was thinner due to several heat cycles and wear.