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Discussion Starter · #1 ·
I first noticed that my truck was popping out of reverse last summer, if I put it into reverse and have my foot on the brake and let off or give it some throttle it pops out of gear, catches itself and makes a loud bang noise, also this fall it started to pop out of gear while going down the road when I hit a big bump or dip in the road. it sounds like it was put into park at highway speed and pops back in when the rpms go back down. anyone know what this might be?
 

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That's not going to be good...........
 

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^agreed, sounds like a rebuild my be in your future
 

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Sub'd for the unfortunate.
 

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Have you checked the fluid-- with it running-??
 

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Does not sound good at all. Have you checked out the shifter linkage?
 

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I have same problem. Truck is at dealership now. I've heard its between the transfer case to the transmission. Its not your transmission. Its the joining between the transfer case and transmission. I was told this was a problem for our year. Mine 08 duramax. I now can't use 2wd or 4wd. Only 4lo. Heard its not a bad or expensive fix. Let you know next week what the damage was.
 
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