Interesting, I have put Nitro gears in 3 trucks now as well as there install kits and no issues at all. My old truck has 80k on them and the new owner has not had issues yet.
where the bearings hideously tight on the pinion? both inner and outer were tight. then i mangled the nut, so ordered a new nut for fzj80, only to find the nitro pinion uses the smaller fine 40 series threads
