hello, well my wife brought the blazer home today makin all kindsa noise from the rearend so i took the dif. cover off to inspect it and i found chuncks of metal (teeth from the pinion gear) layin on the bottom, so i take it the ring and pinion are shot. from what i know the rearend is totally stock 10 bolt and i new it would give up sooner or later. iv never really messed with a rearend before so any help would be greatly appreciated. i looked for numbers on the gear and this is what i found ( 2 GM 1235126 13 40 12 84) so i need some advice? what should i do now? put in a locker? change the gears? im running 36 inch tires and a 700r4 trany and a 308 TC. what gears would be right for my set up? im gona leave this rearend in and jus fix it. i dont wana put a 14 bolt in (yet) please help THANKS in advance!!!!