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Old 10-17-2013, 09:58 AM   #12
anijet
Senior Member
 
Join Date: Dec 2006
Location: Central California
Posts: 288
2012 GMC here. Very happy with it. Trailer suspension is set to lowest position for highest trailer height. Installed longer shackles that lowered the rear of the truck 1 inch so truck and trailer ride level. Did the trailer adjustment myself for no cost and the shackles were not expensive.

Full disclosure, Later I installed air bags so I could remove the overload springs as an experiment. I like them but they were not necessary.
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Leo and Janice
2007 MS 36 TK3 Glide Ride pin box
2012 GMC 3500HD D/A CC 4X4 DRW AirSafe Hitch
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