I put new gears in my car, now it whines on acceleration. I cant seem to find info on what to do to fix. I need to know which way to go. Pattern looked good when I checked it and backlash was in spec.never had this problem before and not sure what I need to do to fix it. Thanks for any info you could give me!

 

most likely your pinion is in to far but with out being to see your pattern i cant really say for sure what did you set your backlash at?

 

It's possible that you did everything right. Some gears will make a little noise no matter how you set them up. The 3.70 gears for the 9 bolt are a good example.