What's the limit?

MikeHayes

Original poster
Member
Mar 20, 2016
72
Vermont
I have a 2004 Trailblazer EXT with the 5.3 V8 and 3.42 gears. What is the max load I should be hauling with it? I pull a couple of smaller trailers (ATV Size) but would like to get a camper down the road a bit.
 

Wooluf1952

Member
Nov 20, 2011
2,663
Milwaukee, Wisconsin
Not sur about the 2004. The specs are in the owners manual.
 

northcreek

Member
Jan 15, 2012
3,318
WNY
My 07 (not ext) with 3:42 rear is rated at 6100(2wd) 6000(4wd). Can't imagine that your ext. would be a world of difference...Mike.
 
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DocBrown

Member
Dec 8, 2011
501
Read page 4-55 in your manual. 5,700 lbs with 4WD, 5,900 lbs with 2WD.

But max towing capacity is only one of the numbers you need to be aware of if you are towing a travel trailer. You need to know the payload rating, which is found on the wight sticker inside the driver door jamb. Most likely yours is something like 1200# or 1300#. That's not a lot. TT tongue weights are heavy, hence the need for a WD hitch.

So you have to subtract the tongue weight, which for example on a 5500# GVWR trailer could be 715#. Subract the weight of the hitch, roughly 100#. At a 1300# payload you now have 485# left for your wife, kids, dog, cooler, etc. You will be over your payload in a heartbeat. Note that the trailer in my example is 400# lighter than the 2WD max towing capacity.

Power is not an issue. The limitation is in the soft suspension that gives you that nice cushy ride.

From experience I can tell you that towing any trailer close to your max towing capacity is simply not as comfortable as having a healthy margin. Having towed 2 different trailers with my old '03 TB I would recommend nothing over 4500# GVWR. Not dry weight. Ignore dry weight. No one tows a loaded travel trailer at it's dry weight. Always calculate by using the GVWR of the trailer.

Also go into it knowing that towing a box down the road changes the dynamics of your ride. It's essentially like holding a 4x4 sheet of plywood in front of you and attempting to run into the wind. Depending on the weight of the trailer you can expect anywhere between 8-12 MPG.

Hope this is helpful!
 
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Moore

Member
Sep 8, 2016
42
Oregon
I cannot find any disagreement with what the Doc just said. Just will add a trip to a scale house to check the real weights should be a must for most towing RVs. I did wt. check my TB last week. 2 adults full fuel 5400 lbs. The GVRW is 6400 lbs. Not much weight rating left to put a TT hitched up to the vehicle.
Sorry, I thought my vehicle was displayed, it is not, it is a 02 TB ext 4x4.
 

MikeHayes

Original poster
Member
Mar 20, 2016
72
Vermont
Thank you to everyone that commented, I have already added this thread to favorites so I can find it when the time comes.
 

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