I work in a Driveline Shop in PA.
www.GreensburgMachine.com, We set up about 300 Car and Truck Differentials a Year,
We use some Motive Gears, But when we do its always the Motive Performance, They do a another laping process to Make them Quiter over the regular Motive. We have ok luck with them in a 8 3/4s. But in some other types of rears they can be noisey, The 9 1/4 is one, Strength wise, They are Not too bad.. I Do prefer, OEM Gears 1st, Then US Gear or Strange over the Motive Performance, depending on Ratio and availability..
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Bottom Line.. If You Go with the Motive Performace and they are set up right. You will be just fine
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