Question about 2003 GMC Sierra 1500

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I was backing out of my drivewqay when i felt a catching like a rearend binding up. i went from drive to reverse and it continued for a while then i was able to get it into the garage. i jacked up the rearend and spin the tires and got nothing. i started turning the driveline and nothing. then i started turning the driveline the opisite way and it would lock. i turned it back the other way and it turned freely. i kept doing this and listened to the rearend and nothing. i moved to the tranny and transfer case and started hearing clanging and loose sounding gears or something to that sort. i had fluid in the tranny and no leaks in the transfer case area. i pulled out onto the road and in first gear i would hear metal rubbing sound until it went to second gear. there was no funny sound but rather a normal sounding truck. just like it had always sounded for the 182k i had drove it. it shifted through the gears fine and goes into reverse and drive just fine. but first gear sounds terrible. i have been told about a shell in the tranny that might have broke. i would love a simple fix since money is a bit of a problem right now but i fear that it could be the start of some major problems.this is the first problem i have ever had with this transmission since i have owned it. i also checked the brakes and the look great. thanks.

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  • Anonymous Mar 25, 2014

    suspect transfer case or rearend

  • Anonymous Mar 25, 2014

    intermitant maybe abs transfer case or rearend

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Check that your rear brakes arent bindinb up it has drum and rotors shoes might be cracked

Posted on Nov 10, 2008

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Sorry to tell you this really but there is not cheap fix. It needs a tranny shop and at minium will need a few gears and probably a clutch pack or too not too mention a complete cleaning and adjust service..AAMCO is reccomended

Posted on Aug 06, 2008

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