Re: Gov-Lock on its way out??
Could be anything or it could be everything. Who knows?? Mine Grenaded on me. (I got a new one I would sell you in a box--virgin--But since you call it a Grenade Locker I assume you won't buy it). Anyway, The Governing Rod Bent under pressure and cracked, just cracked the Sleeve it was pressed into. A $50 dollar part that can be purchased at the dealership--No Lie, but no one can fix it, not even the local GM Shop. Anyway, some really small parts washed around in the diff (real small) and wore out my carrier bearings a little and tore up the pinion bearing. The sound was like a whirring sound that went away at higher speeds (Once I heard it the first time, I heard it all the time because my damn '95 did the same thing, but it broke 23 teeth on my pinion which is why I was so worried on my new truck) Anyway, My ring and pinion were not pitted at all (I discovered and fixed quickly) and my warranty ran out. So I called West Coast Differentials and talked to ED.
(800) 510-0950. I purchased a new diff and a rebuild kit (Shims, bearings) and yanked out the old in the driveway and stuck in the new. (I have the tools, press, dials and knowledge) If the G80 has gone, jack up the diff and turn the wheels until you can see inside the G80. You will see 2 horrizontal rods with somewhat of a square box on each. The upped rod (also the smallest rod and the rod with the smallest box) is the most common point of breakage. Usually the sleeve it is in falls to pieces and the rod runs around in the fluid detroying Ring and Pinion Gear teeth, thus Grenading the whole axle and eventually putting you in a Grenade-Lok 80 state. Thanks GM. Ever wondered why Dodge and Ford only offer Limited Slips. You just found out why. A real Locker would cost too much and most trucks if they need extra traction, a limited slip will do--Except for those of us here.
00 Silverado Z-71. RCD 6" Suspension-PA 3" Body. 35x12.50 Procomp Tires on 16x10 KMC Tanks-Chrome (Why polish wheels all weekend)