quiet running gears for the GM 8.5" and GM 8.625"

when it comes to the GM 8.5" and GM 8.625" ring and pinion sets , noise seems to be an issue with most manufacturers , especially in van applications , there seems to be more howling for these ring and pinions that any other type , we have found from our experience that only 1 brand makes totally quiet gears for this application , wich is the OEM manufacturer AAM american axle , they are the OEM supplier of these gears to GM , we carry the AAM brand gears to learn more about them go to http://www.powertodeliver.com/