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View Full Version : 03 duramax waterpump



68gmc780
04-15-2011, 01:46 PM
Need to change the water pump on an 03 Duramax,manual says I need to remove the harmonic balancer,doesn't look like it is in the way,any experience with these?

chev2500
04-16-2011, 07:47 AM
yes they are a pain in the but there are one or two bolts you cant get to with it on. did on a couple of weeks ago

68gmc780
04-18-2011, 12:09 PM
Thanks for the reply,2500.

Hondarider552
04-24-2011, 07:30 PM
Torque on balencer bolt is 264 ft lbs. just FYI.