What did you do to your OBS GMT400 Tahoe/Yukon Today?

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2000tahoeZ71

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Just wondering. I've always ran 33s and pulled boats, cars, etc and never had an issue. I also have 3.73s. Didn't know it made that big of a deal. I knew these trans weren't very sturdy by any means but didn't know they were that bad. Does your truck have factory transcooler or the aftermarket?
 

Gzes

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It was rebuilt about 4 years ago with not too many miles. Factory cooler. Yea the gear ratio matters alot. You can feel how sluggish it is with the 33s. I towed another car in town the day before and it was fine just long drive and the oil got hot.. I'm planning on adding the biggest cooler I can find aswell. Gonna get a towing torque converter and stronger bands and clutches. A couple of the hard parts are also gonna get upgraded
 

Y2KpewterZ

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installed trans temp gauge. well a few days ago...
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95escahoe

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Got the rear end GT4 3.73's with posi.

When I first got it

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Cleaned up

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2 coats of primer, new backing plates come Monday

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BirchyBoy

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I took my Yukon in to have the rear brakes checked. They said they couldn't find any issue and it drove fine. I left there and when I brake above 35mph it now has a shake. I'm confident it is in the rear because the wheel doesn't shake; I can feel it in the seat.

Is there anything they could have done that knocked the drum out of balance or round? I'm thinking of having the drums run on a lathe. Not sure I trust that shop any longer.
 

SunlitComet

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I took my Yukon in to have the rear brakes checked. They said they couldn't find any issue and it drove fine. I left there and when I brake above 35mph it now has a shake. I'm confident it is in the rear because the wheel doesn't shake; I can feel it in the seat.

Is there anything they could have done that knocked the drum out of balance or round? I'm thinking of having the drums run on a lathe. Not sure I trust that shop any longer.

Maybe a drum weight fell off.
 

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