trying to sniff out bullchit.....

I was talking to a guy last night that had a hummer/cadillac mechanic uniform/jacket on. I didn't catch the dealership name cause it was kinda dark in the parking lot. I was driving my bro's Jeep and he was in a rubi as well so he started talking jeeps. I looked at him and asked why he was driving a jeep when he worked at a hummer dealership....HIS OWN WORDS....Man those h3's are garbage, he said he has done OVER 50 head replacements already and that now the locking rear diffs are starting to break as the trucks get more mileage on them, also said they have replaced about 20 front diffs. what do you guys think...BULLCHIT...OR NOT?!?! He was right on with the heads and the front diffs, but this was the first I ever heard about the rear diffs blowing too....not very promising if it is true

I detect a prejudice exaggeration from a disgruntled piss poor mechanic.

true, but judging by all the stuff I've been reading about h3 problems the past three days on top of my own problems, makes me wonder if he wasn't bieng honest.

If that dealer alone has had 50 replacements. You would be hearing about it.

Isn't the rear axle the same one GM has been using for the last decade under the S-10's, just resized to fit the track of the H3? If it is, why would there be problems all of a sudden? I agree with Dennis.

quote:

ORIGINAL: blackstangs281

If that dealer alone has had 50 replacements. You would be hearing about it.

thats true, didn't think of that.


linus, I don't think the s-10's had a locking diff though? He said the locking diffs are failing

RE: Locking diff problems..

I believe the problem is actually the disengagement of the diffs..the problem lies in the electrical connector to the diff making poor contact..I took mine apart and sprayed in contact cleaner with lubricant...As suggested by a couple of dealers I called about this rare problem.

maybe thats what he meant then...Like I said I haven't heard of any rear diff problems, thats why I thought he was full of chit originally.

Man-0-man..Mike, All it all I thnk I'd sh1tcan this dealer you got...Sounds like real shysters

What I understood, and now stand corrected, is that they were having mechanical failure. The S-10's never came with a factory locking differential, but you can buy one in the aftermarket. I'll be willing to bet that is where GM is getting thiers from. They are probably some part desinged for aftermarket use, but GM got thier meat hooks on it and said give us an exclusive for OEM rights. ( I could be full of it myself right now, I dunno.) Anyway, since the S-10 have been around for a while and there are aftermarket lockers for them, I don't recall hearing that anyone has had hardware failure from that, so why should there be some in a factory installment.

Would an electrical problem such as not disengaging warrant a replacement though? You would think that the default mode if contact is lost would be for it to go to open. Infact, I believe it works on an electromagnate that once energizes attracts itself through a clutch pack or dog gear to engage. So loss of power would mean loss of magnetic field, and it would go back to open. If this is the case, would it be a lack of engagement solved by a simple cleaning/ replacement of the electrical connector? This doesn't seem to add up to a full replacement either. I dunno, maybe bad bearings in the ones with lockers. I'm stabbing in the dark for answers now, so I am back to putting on my bib waders for his bs.