Newer engine swap!
I have a 2000 GMC sierra 4x4 with a 5.3 with a cold air package and
118.000 miles. I would like to upgrade the truck to a new more powerful 6
Liter engine. I pull a 27 foot camp trailer and need a little more torque, I'm
afraid of over working the 5.3! I have the trans flushed regular and oil filter
changed regular ever since buying the truck new, it has 3.73 gears, will the
conversion work, I'll buy a new trans if needs be! Cheaper than a new one by
about $45.000!