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Open Roads Forum  >  Tow Vehicles

 > What’s the most a 07 Trailblazer 5.3 AWD can tow/stop safely

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mkirsch

Rochester, NY

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Posted: 10/11/17 08:39am Link  |  Quote  |  Print  |  Notify Moderator

What is the GVWR of the trailer? In most states if it is 3000lbs GVWR or higher you need brakes. In some states the limit is 1000lbs GVWR. Depending on the state it may be only on one axle, but many states require brakes on both axles.

The cops may have issues with the lack of trailer brakes if you do get pulled over for a moving violation. Not always, but there is the chance.


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PAThwacker

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Posted: 10/11/17 06:20pm Link  |  Quote  |  Print  |  Notify Moderator

First off lets set this straight. 2007 and 2008 TB with 5.3 were all short version 5 seat capacity with 6100-6600 towing capacity.


NO TOW HAUL function on the 4l60 transmission. AWD not many tb but a majority of Envoy Denali.

Towing: popups great, travel trailers suck
Boats, any tow vehicle usually works perfectly only a few can stop a boat trailer including half ton variants.


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We'll See

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Posted: 10/12/17 08:47pm Link  |  Quote  |  Print  |  Notify Moderator

If you are towing more than 2,000 pounds without trailer brakes you are endangering everyone else on the road not just you. I had an 07 Trailblazer with 3.42 gears and the 5.3. The 4 speed transmission was a liability not an asset. It would upshift too soon and not downshift when it should. That engine, like most modern V8s, require higher RPMs to make their power.

The vehicle was very comfortable but the reliability sucked. It had electrical problems, stabilitrack problems, and many other issues. I bought it certified in 2010 and just sold it this year. If I remember right the tow capacity was about 6,100 pounds and would have been 6,600 if Iit had the 3.73 gears.

Towing a 5,000 pound boat shouldn’t be an issue but get some brakes on the trailer.


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BarneyS

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Posted: 01/12/18 09:30am Link  |  Quote  |  Print  |  Notify Moderator

thebrain wrote:

heres my thread w/ images since rvnet doesn't allow images upload
https://www.thehulltruth.com/trucks-trailers/885256-what-s-most-07-trailblazer-5-3-awd-can-tow-stop-safely.html#post10740371

It is very simple to put pictures into your post on these forums or to many other sites on the internet. To post photos do the following.

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Your picture will then appear in your post and be properly sized for use on these forums. Do the same for each additional photo.

You just Upload, copy, and paste.
If you would like to practice doing that, just go to this thread that I started in the DIY forum to try out the app.

This app was developed by one of our own moderators to simplify the posting of pictures. All that needs to be done is upload your picture to our site, then paste the resulting URL into your posts.

Could not be much more simple to do than that! [emoticon] You don't even have to worry about the size of the photo as the software will re-size it to our forum recommendations.
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troubledwaters

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Posted: 01/12/18 10:40am Link  |  Quote  |  Print  |  Notify Moderator

thebrain wrote:


3.Additionally they say Cops will be pulling me over because TB is so low an boat is so tall and I will have to prove w/ documents (maybe bookmark in owners manual) the TBs tow capacity?
The cops will not be pulling you over because you are exceeding the TB's tow capacity because there is no law that says you can not exceed the tow rating of the TB. Your friends are full of sheet.

blt2ski

Kirkland, Wa

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Posted: 01/12/18 11:47am Link  |  Quote  |  Print  |  Notify Moderator

I prefer have brakes on trailers where trailer is grossed out beyond payload of tow rig.
Not sure where you are at. But will swag, a dual axle trailer with out brakes on at least one axle is illegal. Here in Washington state, ALL 4 tires need working brakes. If total trailer is owner 1509-4500 lbs, or over 40% of tow rigs registration gvw, you need brakes on towed vehicle. Be it a trailer, towed car behind a motor home or equal...
I would not pull your trailer behind my class 6 navistar with out brakes, much less your trailblazer!

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drsteve

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Posted: 01/12/18 06:31pm Link  |  Quote  |  Print  |  Notify Moderator

In your other thread you say
Quote:

Plan to install surge brake actuater on trailer to make trailer appear to have legal brakes


So you already know it's illegal, and you plan to make it look like you're in compliance? If you're in an accident the other guy's attorney will have a field day with you. And rightly so.


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Grit dog

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Posted: 01/13/18 09:36am Link  |  Quote  |  Print  |  Notify Moderator

I'm not the trailer brake and weight cops and still maintain your TB will do ok with that boat, IF it's in good mechanical condition.
BUT 5000mi a year towing high profile (truck will think your 10' tall boat is 4-5000lbs not 3 due to wind resistance) on at least half curvy or hilly roads says get some trailer brakes to me.
Since you're still asking the question, I'm surmising that you don't have a lot of towing experience. This is almost as important as having brakes IMO. So if you don't have one, get the other.

Another thing, I'm not up in that vehicle's issues, but FWIW, I've known several people who have claimed that the TB and it's Buick sister are very riddled with issues. Common theme with our neighbor who claims they went through the mistake of 2 of them now. Second one they dumped after like 2 years. Buddy dumped one for an expedition that they've now had for 10 years or so. Couple others I just heard random complaining about.
This is of course conjecture, but nobody buys a TB because it's the coolest thing on the road, except maybe the SS, so they're looking for reliability and good service life and the consensus is it's not there. Just food for though. If you can get good money for it and step into a Tahoe, expedition or pickup you'd probably be money ahead vs sinking it into the TB.


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drsteve

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Posted: 01/13/18 05:42pm Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

I'm not the trailer brake and weight cops and still maintain your TB will do ok with that boat, IF it's in good mechanical condition.

Trailer brake cops? So now legal safety requirements are to be ignored like an inconveniently low payload rating?

Seriously?

Grit dog

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Posted: 01/14/18 10:23am Link  |  Quote  |  Print  |  Notify Moderator

drsteve wrote:

Grit dog wrote:

I'm not the trailer brake and weight cops and still maintain your TB will do ok with that boat, IF it's in good mechanical condition.

Trailer brake cops? So now legal safety requirements are to be ignored like an inconveniently low payload rating?

Seriously?


Your reading comprehension isn't very good for being a doctor....or maybe you're just out to contradict yourself?
OP said its 3klbs. I still reccomended brakes for his intended use.
3klb trailers aren't even required to have brakes by law.....you lose, thanks for playing.

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