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2006 chevy trailblazer_lt
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50 Posts
Discussion Starter · #1 ·
I did a quick search for this answer with no luck, so forgive me if I'm rehashing an old topic.

I'm looking to buy new tires for my 2006 Trailblazer. The truck is the short wheelbase model with the LT package (including leather interior). I'm concerned about what load rated tire I should buy - 105s or 107s. The 107s were OE. I'm concerned because we tow a travel trailer quite often, and I don't want to exceed the load with the weight distribution hitch and tongue weight. Anybody know the dry weight of the truck with full fuel load and no passengers so I can calculate the wheel weights?

I'm considering the Continentals that are OE or the BFG Long Trail if anyone has specific experience with these also.
 

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2004 gmc
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26,436 Posts
Did you search here (we actually don't keep those specs) or Google in the rest of the net? I just searched for "2006 trailblazer weight spec" and got DOZENS of hits.

Weights: gross vehicle weight rating (lbs) 5,750, curb weight (lbs) 4,523, gross trailer weight braked (lbs) 5,200 and max payload (lbs) 1,227

Here's a list of Load Index versus pounds:

105 2039
106 2094
107 2149
108 2205
109 2271
110 2337

I can't see ever going to weaker tires than the OE Contis, especially if you tow a lot. 105 to 107 is only about 5% difference, but I put on LT versions of my first replacement tires (Goodyear Wranger Silent Armors) especially to get a higher load rating and stronger sidewalls.
 

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2006 chevy trailblazer_lt
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50 Posts
Discussion Starter · #3 ·
Found lots of specs for the gross allowable - but no data for unloaded. I guess the closest is the 1,227 lbs subtracted from the gross allowable - but that spec will differ depending on the options package. I'm really looking to see if someone has put a similar vehicle across a set of scales already to get the true unloaded weight.
 

· Registered
2002 gmc envoy_slt
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3,214 Posts
GM originally listed the curb weight, with a full load of fuel and no passengers/cargo at 4750 lbs for the 4x4 models. Now that's the maximum curb weight fully equipped, the actual weight may be slightly less, but you should be safe using that number as a starting point. No 'stock' SWB Envoy/TB with the 4.2 should exceed that weight, if you've done any modifications that number may also differ.

Actually, come to think of it, doesn't the EPA sticker have this info? - YES, just ran out and checked. The EPA sticker has the GVW as equipped as well as the max payload weight. Mine is 5750 as equipped with a payload of 1067, for a vehicle curb weight of 4683 with a full tank of gas. Provided you haven't changed the suspension or added any weight to the vehicle (like your hitch, which would decrease the payload and add to the curb weight), those are the numbers to go by.

Keep in mind that the weight distribution isn't 50-50, my rear axle is rated around 500 lbs higher than the front, so don't simply divide the vehicle weight by 4 to determine the load ranged needed. You need to proportion the load over the axle when towing.
 
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