Offroad Trailblazers and Envoys

Broke rear axles?

G80, GU6, GT4, GT5, WTF? This section is for gearing and driveline stuff.

by TBNewbie » Tue Apr 03, 2012 7:22 pm

I was just curious how many have broken rear 8.0 axles and what tire size, gear ratio, what broke and what were you doing when it broke. Trying to figure just how strong it is!
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by The Roadie » Tue Apr 03, 2012 11:41 pm

Google trailvoy for my thread mentioning Montrose, CO.

If you wheel hard, be ready for when it breaks. Took me 4 years. YMMV.
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by fishsticks » Thu Apr 05, 2012 1:05 am

Took me 6 months. 32" tires, 4.10 gears. Turned the G80 into metal dust.

Doing this... (this is after a new stronger axle with a real locker and 35s) I broke in the exact place that I got hung up here, doing the exact same thing trying to get over it.

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by TBNewbie » Fri Apr 13, 2012 9:19 pm

So are any of the parts swapable between the two? Axle shafts, berrings, I think I have read the brakes are the same.
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by The Roadie » Sat Apr 14, 2012 10:13 am

TBNewbie wrote:So are any of the parts swapable between the two?
Almost nothing. The axles especially have more splines on the larger unit. No reason to swap parts anyway. Just get the larger entire assembly from the junkyard/auto recycler.
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by DirtyBacon04 » Sat Apr 14, 2012 9:59 pm

off topic... fish, that place looks like so much fun!
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by fishsticks » Mon Apr 16, 2012 12:43 pm

DirtyBacon04 wrote:off topic... fish, that place looks like so much fun!



Too bad you never headed north before heading east.

That big rock in the middle is known to EVERYONE as "the rock." I personally know half a dozen people (myself included) who've broken axles there. I have some custom work done on my left rear wheel from a subsequent run at that same spot. It was slick out and I was up too high on the right side wall.

It doesn't look like much in the video but that spot is tricky.
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by DirtyBacon04 » Thu Apr 19, 2012 12:11 am

i know. I wish i found this site when I first bought my TB back in 08. I'd be up with y'all in experience by now. Damn... Shoulda, coulda, woulda's....
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by The Roadie » Thu Apr 19, 2012 12:50 pm

DirtyBacon04 wrote:i know. I wish i found this site when I first bought my TB back in 08.
You could have been one of only three of our trucks to ever run (part of) the Rubicon. Now you got swamp. :finger:
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by DirtyBacon04 » Thu Apr 19, 2012 2:01 pm

:cry: :cry: :cry:

But hey, I'm still the only 360 to attempt pinyon squeeze!
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by dvanbramer88 » Fri Apr 20, 2012 10:54 am

DirtyBacon04 wrote: :cry: :cry: :cry:

But hey, I'm still the only 360 to attempt pinyon squeeze!


BOTH ways! :poke:
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