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I recently got a 6" Rough Country Lift and am planning on renting a Travel Trailer for the first time. I want to know if I am going to have a problem pulling something 6000 lbs and maybe close to 1000 lbs of tongue weight (most that I have seen also include the sway bars). I have pulled a lot of stuff but nothing over 5000 lbs before.
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Anyone have any comments or suggestions regarding this?


I bought this truck because I thought I would someday get a travel trailer and just hope the lift didn't totally screw me. I had one person tell me he wouldn't rent to me because I had a 6" lift. At first I was a little concerned about how high the hitch might be compared to the travel trailer but I was parked next to a silverado trail boss yesterday and it appeared our hitches were within an inch of each other so even though I have a 6 inch lift, my truck is just now the same height as a full size truck (side mirrors are even and bottom of window is even for example).
 

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That sounds like a lot of weight to be towing if you've lifted your truck. The bigger tires to me are the main cause for concern because unless you've also re-geared your axles accordingly, it alters your final drive ratio and not even a well executed engine tune is going to compensate for it. Your engine will just be working harder since it will not able to stay in the right gear and RPM band, and you'll be at a much higher risk for overheating your engine and transmission among other things. I've known a number of folks who've lifted their trucks without re-gearing and got into a world of hurt when they started trying to tow relatively heavy trailers. It's one of the reasons why a lot of factory hardcore off road trims (ZR2, Rubicon, Raptor, etc) have reduced tow ratings.

So if you haven't re-geared, you should stay at a 4-5k max load, especially if you plan to be towing on any steep grades. If you've re-geared, you should be OK with the trailer you specified, but I would still do some research first to see how similarly modified Colorados have performed over the long run. BTW, here is a link to a good gear package if you're in need. You would likely be fine with the 4.10 ratio.

 

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I have a 6" lift on my Canyon and have towed a similar weight travel trailer with it. TBH, I haven't towed it far yet, but so far no issues. Flat land also. Biggest issue so far - mirror don't stick out enough to see a damn thing behind you but the trailer. The only available tow mirrors I've found are clip on or $$$.
 

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If you're going to be towing regularly then the 4" blocks in the rear will become problematic. Even with just unloaded street driving, the blocks being as high as they are puts a significant strain on the OE leafs. You'll likely also experience some axle wrap from it. I've got the BDS lift which uses the same 4" blocks in the rear and after a year and a half my OE leafs were completely shot, and that's without doing any towing and the axle wrap was pretty noticable from day one. I just finished putting on a set of custom Alcan leaf springs that let me ditch the blocks. 3" of lift in the springs with 2" longer shackles (from SuspensionMAXX) was the perfect combination to replace the 4" blocks. No change in ride height but the ride quality is night / day better and the axle wrap has been completely eliminated.

The springs were $700 for the pair + $200 shipping from CO to NY and they'll make them to exactly the lift height, load capacity, and drive style you want; a pretty reasonable cost I feel for a custom made set. I can't recommend them enough to anyone who has a BDS or RC lift on their Colorado. It's worth considering down the road if you find that after a year or so it rides like a dump truck in the back.
 
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