need to replace timing chain on 2003 Chevrolet Silverado 2500

chain may be stretched. making noise. truck has 300,000 miles on it. ran it moderately hard. any ideas on the estimate for labor? i know parts cost already.

Asked by for the 2003 Chevrolet Silverado 2500
around 6 hours.

6 hours? you have to take the entire front end off of it. before you even get to the water pump. it is probably over a day wouldnt you think?
1 more answer , 1 more comment
$340 to $400 is about average.
yeah closer to 400 maybe a little higher. thanks.