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I bought an 03 GMC 4X4, CC, SB with 19K miles about a month ago and love it. i'm getting ready to change the oil for the first time and would like to know what is the best oil to use?


I am also getting ready to juice the truck and was wondering, just what trans mods i need to have done if i go beyond the juice?
 

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i run rotella for the oil and have a suncoast tranny.if you dont go over the 90 juice stock will do just fine
 

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I wonder what the affect of NOT adding a beefier Torque Converter with the Co-Pilot install ,would be ??


In other words your only getting partial results ... No ??








Mac
 
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