tow rating
25

Asked by Danno Apr 06, 2008 at 01:15 PM about the 2005 GMC Sierra 1500

Question type: Maintenance & Repair

What is the max tow rating on the 2005 Sierra Z71 and how could I beef up the suspention to improve towing and payload?

3 Answers
14,295

casper271 answered 16 years ago

max towing is 10500lbs with the proper stuff. Yes and no (could I beef up the suspention to improve towing and payload?) dont forget your brakes/axle/steering/cooling/tranny. for the best answer, I would recommend going to a trailer/hitch shop and talk to them, they will look over your truck and let you know what your limits are now and what you can do to increase it.

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2,315

97drexelgrad answered 14 years ago

what size engine and what gear ratio do you have? This is what will answer your question. I have a 2008 GMC Sierra 1500 4 Dr SLE 4WD Extended Cab SB with a 5.3 liter with a 3.73 rear and the max towing rating is 7900 pounds. I also added a set of rear helper air springs for better leveling and better control while towing my 7000# camper

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97drexelgrad answered 14 years ago

here are the links of what I added: http://www.summitracing.com/parts/AIR-59565/ air springs http://www.summitracing.com/parts/AIR-72000/ wireless air compressor

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