I am looking at their 3.90 Dana 60 gear set... opinions on quality of Motive Gear sets??

I've got two sets..work fine for me...did a buddies 512 4000 lb car with a 4 speed a few years ago and it's still going strong..of course these cars are so loud I couldn't hear if there is any gear wine at speeds.. but the mesh pattern was good when assembled so .....

I have used them several times with great success. They all have been easy to get a good pattern on both sides of the tooth, and all have been quiet as a church mouse. Wish I could say that for some of the richmonds I've put in.

I haven't used Motive specifically, but they bought Richmond and I've been using their stuff. My differential guy, who does excellent work, uses Motive products quite a bit.

Got a buddy that does lots of diffs. He uses nothing but Motive.

I have used them as well as a buddy of mine.. loved
them... nice and quiet

I put Motive 4.56 gears into the 9.25 axle under my Dakota when it had the big block. I didn't have any issues with them.

I have a set of their A/FX gears in my 9"..4.57's..they are set up and ready...havent run them yet...my diff guy says they are good gears..he set mine up to run on the street..

They better be good because Motive Gear bought out Richmond. I run there gears in my dragster with no issues.

You might be surprised how many other brands are repackaged Motive Gears.