[QWKSNKE]

Originally Posted by qkjuicedpony

I would run a 4.10 without a doubt.Put them in many daily driven cars with no issues

I agree. There probably will not be a 100 rpm difference between 3.90's and 4.10's at cruising speed.

I installed motive 3.90's in GI Joe's Roush a few years ago. I don't recall a whining noise when we went for the test drive though.

Also installed some motive 3.73's in mid 90's chevy truck for a guy I work with. He never mentioned a whine.

But yeah on modular fords they bash the motive gears pretty hard about being noise makers