I'm towing 10,000 and mine is set at 3.5, I just completed repacking the wheel bearings on the fiver and adjusting the brakes. My fiver has 13,000 miles on it. Read the GM manual it explains how to set the IBC correctly. To me it is the best brake controller I have ever had.
Just Me & DW
2008 GMC 3500 SLT DRW Diesel
Pioneer AVIC D3 GPS Nav/Stereo/backup camera
2007 276RLS Cougar 5th wheel by Keystone
Scooter Buddy 125
17.5 Crestliner Boat
For those of us who fought for it, freedom has a flavor the protected will never know.
I have a 2007 GMC 3500 with the factory brake controller and tow three different trailers. I have used all kindsa of brake controlers in the past and this one is the best! Obviously the setting for each trailer us different because of the weight of each trailer. The guy who suggested test braking at 15-20 MPH is spot on. Drive down (or up) the road and slide the lever all the way over. If the brakes lock immediately, back off the power and try again until you feel them retard hard, but not lock up and you have it. When at an idle and in gear, the trailer brakes alone should hold the truck and trailer from moving. You will find that when the trailer is empty it will take less juice than it will when it's loaded so adjust accordingly or you will find yourself leaving foot prints on the road every time you hit the brakes.
M & M On the road again! 2007 GMC 3500-SRW-Duramax-longbed-4X4 2005 COUGAR 5th wheel 2002 SUNDOWNER gooseneck horse trailer
Thanks, I have gotten some great info on the brake controller here. I towed with it last week and it worked for me very well.
Thanks to all of you who took the time to offer suggestions. I did finally get around to reading that section in the owner's manual again and the second read was more help that the first go 'round.
Doug and Kathy
2008 Chevy 2500HD extended cab Duramax/Allison 4WD
2007 Crossroads Cruiser CF30SK
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