Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Did you drain the the transmission fluid to see if there is metal in it?
Can I get the last 8 of the vin to pull the transmission schematics for your vehicle
when this happens and when in drive and the rear drive shaft is NOT moving at all the problem is either internally in the transfer case or the rear planetary gear set in the rear of the transmission has failed
its best to remove the transfer case and with it in park see if the output shaft of the transmission is locked if it IS locked the transfer case has failed if that output shaft WILL turn when in park then the transmission needs to come out and be rebuilt or at least the rear planetary gear set replaced
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