Gears & Axles - 3.90 Motive Pro Series Gears???

Considering it's a 10 bolt rear end, are there any advantages on using Motive Pro Series vs Standard Motive Gears?
http://www.summitracing.com/parts/MGR-G975390/

Considering it's a 10 bolt rear end, are there any advantages on using Motive Pro Series vs Standard Motive Gears?
http://www.summitracing.com/parts/MGR-G975390/


Pro gears(9310 alloy) are softer and meant for track use only, you don't want that gear if you drive on the streets at all.

You probably want their street type(8620 alloy)"Motive Performance". Part number there should be G875390. G=GM rear, 8= 8620 alloy, 75= 7.5" ring gear diameter, 390= 3.90 ratio.

Yes^ stay away from 9310 for street use. It can't handle the long term use.

Thanks for the help fellas.