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So the sequence of having it in unlock,then turning car off to engage lock then starting didn’t work. But put it in neutral and it did engage hi lock and low worked as well. So I’m down to fourth gear now again. I’m sure its transmission is gone in 3&4. I don’t know if I should rebuild it or...

Dude I’d have to read for a year and do fact checking before I received an answer. I’m posting real time on the side of the road. All over people are driving without front shaft,there has to be a reason why it just unlocks rear drive. So there has to be a sensor a something that controls this...

So I’ve read on here when front driveshaft is removed you can still drive in 4wheel high? Well that is true for a couple blocks, This pos acts like it’s in neutral again,just tryin to get this pos home. Had the loud popping sound underneath so I had to remove axle to verify it was cv joint. It...

Yes sir two diff issues but yes it has heavy vibration n clicking is random

Tranny lost 3&4, and yes I pulled it to friends house ,I had the tc,and tranny in neutral and there was a heavy heavy vibration. The clicking is not rhythmic it’s random and not umm the synchronized sound

Man I had this feeling something was dragging me down ,when I pulled over the cv joint was smokin hot,I mean almost turning red. Had it towed home and now when I drove around the block the dragging feeling gone but I have a clicking underneath. I hope it’s the joint and not another differential...

What are symptoms of a failed cv joint? I lost d n 3 in tranny but still can manually shift to 3. I’ve got some clicking sound and was wondering. If it’s cv joint

I love the h3 the way it drives and feels but it’s a money pit that is broke down more then on road.I can’t see spending 2500$ for used tranny with 100k miles on it. Got a guy that rebuild it for 1500$but I already went that route in a Camaro and it got worse every time it was rebuilt.

Hey guys I am looking at used transmissions online ,there is a big range from 500$-2500$. If I search for Colorado Trang they are lot cheaper.will Colorado 4x4 transmission fit with out a lot of modifying? Such bullshit that hummer in the name cost twice as much,they break twice as fast. Anyway...

I have a video of the front axle cv joint smokin like a freight train,I have been told that is what probably made d n 3 go out. video is one minute long but I’m having problems putting it on the form.

How do. Send a video of one minute to you guys to watch,tripped me out !the front driveshaft at the cv joint was unreal hot,smokin like a rock co

No sir I purchased a front differential, Had a mechanic at a shop put it in. They called n said it had a bad transmission and said it wouldn't shift outta first gear, I went and put the shift motor in transfer case the correct way and it was fine. Worked great for two weeks and last nite it...

Oh man you just told me my future with this, Ok I got past the front diff A cv axle The h3 had been doing good,wanted to go off-road but hadn't had the chance,it is a dedicated dailt driver,when I'm not in it ,wife is taking it , Coming home today I hear this crazy noise and it was losing...

I am busy asf,I got on here to learn and did,so chasing tail Maybe, chasing my tail is a negative. Stuck to subject Mr messy ,I'm not in here for social status. Ok I replaced front diff ,well I traded electrical work for the repair,on way home sun I guess one of the original cv axles lost the...

Damn damn damn the hell

Hey guys,I bought used diff and let a customer of mine install it,they got it in and called me and said transmission is out! What's the chances that his mechanic is just not knowledgeable about Hummers awd,I didn't have no issues with tranny,not once and he'd saying it goes a min and pops outta...

Ok,I finally got the cv axles out,(that’s a lot of shit to disassemble just to remove diff. Where did the tension clip go?I see groove but snap ring is in my boot?one on spline diff side, Lol. Next is remove diff Damn bolts are sheared off to where I can’t get an 11 on but one,looks like it...

Bought a used one that has no leaks n seems to be fairly good,everything spins together,how hard is this to replace?

Yes sir won't stay locked.

That's exactly what's happening, I'll manually put it in lock n for whatever reason it goes to neutral again. I got used front diff,no leaks everything rotates,how hard is this to replace