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Discussion Starter #1
I cross posted this in maintenance thread as well

New member here....

My son has a 2003 Silverado 1500 4x4 (5.3l) with the GT4 rear end 3.73 ratio

His diff exploded.

I can get a rear axle from a 2003 Yukon XL that supposedly is the GT4 with 3.73 as well.

Are these interchangeable?

As soon as I know, I can go get the axle.

Thanks in advance for your help.
 

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Yes and no. Same guts, axles, and housings, but Tahoe’s are coil sprung vs leaf sprung on pickup truck. So all the mounting points are diffent.

You could swap the guts over, but used gears never set right, wouldn’t recommend this. I would transfer the mounts before that.
 

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that would work
 

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2003 Silverado 1500 EXT CAB RWD
I have the same GT4 3.73 Limited Slip .
Why does only the right tire spin on a burnout ?
had the reared rebuilt 20k miles ago if this helps.
 
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