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I have 2003 Chevy Siverado, 2500HD Duramax/Allison, 4WD
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driving at about 65 mph my tranny sliped...only work in 3rd gear.
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My 2004 Chevy 3/4 ton w/ Duramax and Allison won''t run in D (drive). It will run in 3rd but only if I go to 1st first and then back to 3rd. The horizontal bar indicator doesn''t illuminate under ever… read more
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