TURBHOE

iTrader: (4)

ok a freind of mine has a 99 z71 with over 90,000 miles on it. he's been having a funny grindy kind of noise for some time now and we could never pin point it. well another friend is working on this thing now and says that on a hard right turn it grinds rear loud and its from the rear and on a hard left turn it does it but not as loud and going about 55-60mph you can hear the grind noise to. it more of a creeek than a grind i guess. or the two together a grindy creeek lol. is it the rear end? gm just did a flush on it so the fluid is new. is it just at the end of its life? what else can i do to check this thing?

trever1t

iTrader: (14)

Mine would 'pop' real loud when making a right turn. It would clunk so hard when it engaged the whole truck would shudder.

TURBHOE

iTrader: (4)

i'll have to drive it some myself. what kind of throttle were you giving it when it did this?

TURBHOE

iTrader: (4)

this guy is trying to leave maine he is suppose to have left to go to his next duty station like 2-3 days ago so i got to get him on the road and he will be pulling an audi A4 or something like that on a flat bed trailor with some other goods from his house so it need to be dependable. should i just put in my old open diff till he can get where he needs to go? or is there a safe reliable way to fix this?

trever1t

iTrader: (14)

It did it when I gave it some throttle turning. I was camping one time and started slipping on pine needles and it engaged so hard i thought I broke an axle?!

I would think if it was going to go it would be gone, I dont know if it gives any warning. I took mine out at 4K miles.

TURBHOE

iTrader: (4)

well i guess it ratchets on hard right turns and light left turns. the creek noise was the exhaust hiting the shock. they drained the fluid it had no metel chunck or any thing. and under alot of stress it ratchets i guess. i'm not there yet to see or hear for myself so i'm just telling what i'm being told. so is it suppose to ratchet in hard turns? i've never had a g80 it just sounded like an expensive peace of crap option so i opt not to have it lol. i've got a detroit c-locker. its been through to rigs lol.