Outer Limits 4x4 Board

Hi all, It seems that my uni on the front end of the rear tail shaft has shite it self and only lasted 10,000 ks. It was an after market one but not sure what brand it was.
Should I go with Genuine with the next one or is there a good after market one that some one can suggest as the Genuine ones are fairly pricey.
Cheers
Glenn

don't get the aftermarket ones with the grease nipple on one of the outer bearings.. very dumb idea. i put one in at the back of rear shaft and i think it was knocked off on a rock or something. thus uni only lasted about a month.