ORIGINAL: derrick05
No!Not on an NX truck.I thought they were one of the most durable out there.Just contact cen and Im sure they will make it right because of their GREAT customer service.YEA,RIGHT!
If you don't like CEN, quit trolling other posts in this forum and go find another brand to buy.

Also, I'd be more than happy to take your unwanted CEN truck and use it for parts for mine. Being four years old, it's bound to need the odd bit here and there...
My FunFactor's diffs have held up beautifully to a steel spur and OS 18 CV-RX, plus four years of the NT16, and they don't have any appreciable wear on them at all. How the hell did you strip your front diff? I beat the hell out of mine while driving, burnouts, drifting, the odd jump or two, nevermind the insane two-wheel donuts that get the inside front wheel to 8" diameter :P
FYI: Your NX and my FunFactor share identical drivelines. They will cross over freely without mods.