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"The cam vacuum pump adds an additional 500 watt load at cruise RPM.
You can replace the always turning, almost always unneeded vacuum pump with an electric vacuum pump that can almost always stay off."
I remember somebody running the pump and crunching the numbers a while back (may have even been you) and I'm still amazed by the 500 watt load.
I am going to have to go 4wd unfortunately...I just live too far in the sticks to even consider 2wd right now on this type of rig. Every time it rains or snows/thaws we need 4wd to make it out of my 3/4-1mile drive way/lane (huge hill for around here...no incentive for the county to drop gravel since I'm the only house on the lane).
However, I really only need to be able to pull 10-12,000 lbs with this rig. Anything more than that and I will bust out one of the trucks. So I could conceivable run 3.42's or higher instead of the 4.10's or 4.56's like a lot of guys are running.
I appreciate the information you have provided on 6.2's, and I'll keep it on mind while stalking craigslist. There are 3 trucks and 2 Suburban's within 100 miles of me that I plan on looking at this next week when I get home...crossing my fingers I can snag a good one.
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