so ive been looking online at east coast gears.....has anyone use the motive gear brand before? if so thoughts?.....wanting to throw 4.10's in the front and rear of my 90xj

Pm me which axles you have. I'll get you a price on Nitro. I think you'll be surprised at how much I can save you.

Motive gears have a very meager 6 month warranty.

What axle do you have out back?

Motive are loud and harder to get a good pattern than most. I ran them in a 10 bolt in a Camaro and a 9" in a Mustang and didn't care for either. Once I tried Yukon I haven't looked back.

Motive gears have 2 lines of gears. The blue box (budget gears) and the yellow & red box (premium gears). There is a price difference and a noticable quality difference between them. I agree that the budget gears are not the greatest but the others are OEM quality. Just throwing that out there so people know what they are getting.

Miles

i have the 8.25 in the rear and switched to the non vacum actuated dana 30 for the front

I have ran them in Ford 9" setups in drag cars up to 1200hp using transbrakes and Dirt Track Late Models with 6-750hp. Have only had one failure and that was from a poor setup as happens to often when you buy something from someone at the track.

Get Yukon master install kits

FYI...
I had a reputable Jeep Shop in Long Beach rebuild my rear Dana 44. I bought all the pieces including G2 gears. The Shop Highly recommended I not use the G2 gears and would not give me a warranty on the rebuild with the G2 gears.
As recommended, I upgraded ($80 more) to Spicer gears and finished rebuild with full warranty.
No complaints.

Yep...
Won't sell 'em. won't install 'em.

I had a long time Jeep shop 30 yrs tell me the same thing about Aussie Lockers. Flat out refused to install them and have his name on the job other than that he said he would install. So I sold the one I had bought the one I bought to my son for a $100 and still looking for what I want.

As for gears he suggested Rustys and to buy the sets he offers front/rear plus install kits for both packaged together (prices can't be beat) from what I found. He said he has installed quite a few sets of them and were great for most all except the extreme "Hard Core" crawler or trail user. Then you get into another class of Jeep as far as builds go. I'm neither of those just run trails and nothing over about a 7 max, if that much.

I had been looking for gears for about 2 months and this was the first place I found them packaged for a complete re-gear job.

Fred

I have USA standard gears. Very very minor hum. Can't even notice over mt tires. On a side note their master install kit comes with new axle seals most do not. Very nice packaging and all around I think it's good quality for te price. If you read further about gears you'll find that there is only 2 or 3 actual warehouses that produce gears in the world. Quality control bases which gears get branded for what.

Also rwk haus supply will have the best prices. Check over on naxja. I shopped for months before I actually bought some. Paid about $520 I think for f+r gears(chry8.25&d30) and both master install kits and shipping.

I only use Yukon or Precision (or Ford Racing PP if it's a Ford axle like the 8.8). Get em cryo'd if you really want them to last.

I have the same setup as you and Rustys has the same price.