madimas said:
OK - I think I got most of the information you requested.
The Trailblazer is a 2007 LT 4WD.
The engine is a 4.2 Liter L6 (inline 6 cylinder).
I can't find the gear ratio anywhere.
Trailer Life gives the following tow ratings depending on rear end ratio on their website:
TrailBlazer/Envoy 4WD 4.2L I-6 5,200 with the 3.41:1 rear end;
TrailBlazer/Envoy 4WD 4.2L I-6 5,700 with the 3.73:1 rear end;
TrailBlazer/Envoy 4WD 4.2L I-6 6,200 with the 4.10:1 rear end.
Your trailer has a GVWR of 5,600. Alllowing a 10% safety factor that trailer would need a truck with a tow rating of at least 6,200 lbs. That rating would have to be increased to 20%, giving 7,000 lbs, if you plan to tow in the mountain or Pacific west.
In short, if your Trail Blazer has a 3.41 or 3.73 rear end, the numbers indicate that the trailer is too heavy for the truck. If it has the 4.10 you are ok for the east but stay away from the Rockies or the far west.
If you currently own both units, then it is time to get an actual weight of the trailer. This is a matter of safety so do not kid yourself with the weighing. Weigh the trailer packed and ready for the road with all your gear on board, and with a full tank of freshwater and full tanks of propane. Then apply the 10% or 20% factors and make your own comparisons with the numbers I have given.
Do make a poiint of finding out your rear end ratio, it is critical here. Check it out with a Chevy dealer's shop or if you still have the Chevrolet new car window sticker, it may give the ratio.