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Expert Answers about Sterling L-Line


  • Electric Brakes Lock Up Everytime I Touch the Brakes
  • I recommend starting with the 7-Way connector at the rear of your tow vehicle. Check for any corrosion or debris build-up inside the connector that might be causing a short and clean as needed. If the connector looks fine, use a multimeter like # PT89ZR to test for voltage at the brake circuit on the connector when you have the brakes applied using a low setting. With this setting, you should see a number well under 12 volts, as 12 volts is the maximum output of a brake controller. If...
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  • Recommended Trailer Hitch Compatible 2007 GM with 34 Inch Frame Chassis
  • The 34 inch from outside to outside is a cab and chassis frame will allow for a few hitch fits. I recommend the Curt Trailer Hitch Receiver - Custom Fit - Class V Commercial Duty - 2-1/2" # C15800. This has dimensions to fit your frame. I've attached a diagram to assist. You may be interested in # C22277 when not in use.
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