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Good evening. Tim from Georgia. First post. I signed up to share some things about my Colorado that I think may be useful to some, boring to others.
Loving my 2016 Colorado 2.8 duramax diesel. Had it since early December. Replaced my 2003 suburban z71 with this. Truck is used as a daily driver but also a weekend warrior as a tow rig for my 5600lb trailer (18" steel floor flatbed with a toyota rock crawler) I weighed my truck and trailer on the cat certified scales, for what it's worth the truck weighs about 4700 lb (estimating out the gear and people and tongue weight) the integrated trailer brakes are great, you set the gain for your load and they work based on how hard you push the brake pedal. The exhaust brake is nice on grades.
2700 or so miles so far, Lifetime mpg so far is sitting just over 23 mpg. breakdown of that 10% towing the aforementioned trailer, 60% city, 30% highway. I see 16 mpg towing on the highway, 30 normal highway, and about 23 around town. I Also remote start the truck and let it warm up before driving it, which has an effect on mpg.
Just did a lift on this truck and my searches found a lack of solid info. Found lots of people posting vague info like "I run 285s" without telling how they rub or what lift or wheels. I thought I would share my thoughts and experiences to help others who are searching for info.
My truck had 3/4" of rake from the factory. Z71 crew cab short bed diesel. I wanted to keep the rake because I haul and tow and also for my personal visual preference. Leveling just the front was not an option for me.
I did an autospring (autospringkits.com) add a leaf (advertised 1-1.5" lift) and an icon (iconvehicledynamics.com) 1" rear block and It settled to 2.25" in the rear. I did an auto spring 2" lift up front and gained a hair over 2" up front. This put me with a 1" rake and that is perfect for what I wanted.
The rear shocks need to be replaced because they top out on rebound over big bumps (too short now) so I replaced them with fox shox # 980-24-660 (ridefox.com) the truck aligned fine.
My wheels are fuel recoil 18x9 with 20 offset or 5.75" of backspacing (however you like to measure wheels). Factory wheels are 17x8 with a 33 offset or also about 5.75" backspacing. Same backspacing but a 1" wider wheel, so the inner lip is in the same place and the outer lip is 1" wider at the fender.
The tires are 265/65r18 duratracs and, on my setup, are absolutely the largest tire you can run without rubbing. Keep in mind I am running a wider wheel, which gets the tire closer to the fender when turning. It's very close but clears everything.
Going to try and upload pics of the lift and tires and offset. Some forums don't let first time posters add attachments.
![Land vehicle Tire Vehicle Car Automotive tire]()
![Tire Automotive tire Vehicle Automotive exterior Car]()
![Land vehicle Vehicle Car Automotive tire Tire]()
Loving my 2016 Colorado 2.8 duramax diesel. Had it since early December. Replaced my 2003 suburban z71 with this. Truck is used as a daily driver but also a weekend warrior as a tow rig for my 5600lb trailer (18" steel floor flatbed with a toyota rock crawler) I weighed my truck and trailer on the cat certified scales, for what it's worth the truck weighs about 4700 lb (estimating out the gear and people and tongue weight) the integrated trailer brakes are great, you set the gain for your load and they work based on how hard you push the brake pedal. The exhaust brake is nice on grades.
2700 or so miles so far, Lifetime mpg so far is sitting just over 23 mpg. breakdown of that 10% towing the aforementioned trailer, 60% city, 30% highway. I see 16 mpg towing on the highway, 30 normal highway, and about 23 around town. I Also remote start the truck and let it warm up before driving it, which has an effect on mpg.
Just did a lift on this truck and my searches found a lack of solid info. Found lots of people posting vague info like "I run 285s" without telling how they rub or what lift or wheels. I thought I would share my thoughts and experiences to help others who are searching for info.
My truck had 3/4" of rake from the factory. Z71 crew cab short bed diesel. I wanted to keep the rake because I haul and tow and also for my personal visual preference. Leveling just the front was not an option for me.
I did an autospring (autospringkits.com) add a leaf (advertised 1-1.5" lift) and an icon (iconvehicledynamics.com) 1" rear block and It settled to 2.25" in the rear. I did an auto spring 2" lift up front and gained a hair over 2" up front. This put me with a 1" rake and that is perfect for what I wanted.
The rear shocks need to be replaced because they top out on rebound over big bumps (too short now) so I replaced them with fox shox # 980-24-660 (ridefox.com) the truck aligned fine.
My wheels are fuel recoil 18x9 with 20 offset or 5.75" of backspacing (however you like to measure wheels). Factory wheels are 17x8 with a 33 offset or also about 5.75" backspacing. Same backspacing but a 1" wider wheel, so the inner lip is in the same place and the outer lip is 1" wider at the fender.
The tires are 265/65r18 duratracs and, on my setup, are absolutely the largest tire you can run without rubbing. Keep in mind I am running a wider wheel, which gets the tire closer to the fender when turning. It's very close but clears everything.
Going to try and upload pics of the lift and tires and offset. Some forums don't let first time posters add attachments.
