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Old 09-11-2011, 10:23 PM   #11
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Thanks for the links Bob.

Printed off the sticky for reference at the scale.

The one from RV.Net is the one I found that actually made me re-adjust and watch the video linked to it.

I will within the next couple days hook up in a "loaded" state and take pictures and get them posted for feedback.
At the end of the month we have another 200 mile one way trip and I would love to have this resolved.

Thanks everyone for the great feedback!!!!
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Old 09-11-2011, 10:45 PM   #12
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Brian,

There is one other thing to check for. Many folks (including myself) towing TT's with heavy tongue weights had some issues with our GM OEM Receivers (1999-2007). What would happen is that when you engaged the WD spring bars the OEM receiver pin box would flex "upward" thus compromising the weight distribution. It would also flex while in tow....., not a good thing. Also check for cracks around weld joints.

Before you engage your WD spring bars, measure the distance between the top of the receiver pin box and the bottom of the bumper. Next, while engaging your WD spring bars watch for movement of the pin box. After the spring bars are engaged check the distance again. A "little" upward movement is ok (1/8" to 1/4").

This is a pic or my OEM receiver pin box "bent" in a static state just prior to replacing it with a "real" receiver:



Bob
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Old 09-11-2011, 10:57 PM   #13
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I have noticed paint missing and surface rust at "Flex" points on the hitch. Will have to inspect closely!

Never cared for this class 5 style hitch with the slide in adapter/reducer
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Old 09-11-2011, 11:06 PM   #14
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Brian,

I wasn't aware that GMC used an adapter/reducer in 2007 on their OEM receivers. Did you upgrade your receiver?

Bob
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Old 09-11-2011, 11:22 PM   #15
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My truck is a late 07(new body) GMC with the "Work Truck" pkg . Not sure if that jumped the hitch to a class 5 (2 1/2" reciever) or not? My dad has a late 07 silverado 2500hd (new body) with the same class 5. I just assumed they(GM) started putting that hitch on all the 2500's?

the hitch itself looks very similar to yours.
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Old 09-12-2011, 08:52 AM   #16
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snip......Not sure if that jumped the hitch to a class 5 (2 1/2" reciever) or not? My dad has a late 07 silverado 2500hd (new body) with the same class 5........snip
Brian,

If you have the 2 1/2" pin box, then you have the "newer" GM OEM receiver design, and I haven't heard of any issues with them like the prior OEM receivers (my 2500HD has the 2" pin box reciever). If my memory serves me correctly the 2 1/2" design is similar to mine (as you mentioned) but doesn't have as many weldments and the pin box isn't mounted/welded as far away from the reciever cross tube like mine.

The GM OEM reciever that I had was used on all large GM Trucks/SUV's prior to your newer design, but the only difference on my style reciever was on the "HD" models GM added a little recessed metal plate above the pin box to give it a higher weight rating (500lbs I believe).

Like you stated, I would check yours anyway just to rule it out.

Bob
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Old 09-12-2011, 02:31 PM   #17
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Quote:
Originally Posted by Rustic Eagle View Post
The GM OEM reciever that I had was used on all large GM Trucks/SUV's prior to your newer design, but the only difference on my style reciever was on the "HD" models GM added a little recessed metal plate above the pin box to give it a higher weight rating (500lbs I believe).

Bob
Bob,

Is this what you mean by a recessed metal plate? These photos show my hitch on a 2007 late model, new body half-ton. It's a 2 inch receiver. The sticker says tongue weight rating of 500lbs weight carrying, 1,100lbs weight distributing. Perhaps the OP's new style hitch is similar for his 2500?
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Old 09-12-2011, 02:49 PM   #18
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Bob, Is this what you mean by a recessed metal plate?....snip
David,

On the 2500HD's GM placed the recessed metal plate inside the "U" shape gusset above the pin box. All the non "HD" models didn't have the little plate so you would actually see the receiver cross tube. Here is a pic showing the metal plate (ignore the yellow hi-lite):



Here is a pic of our Forum Moderator "Crabman's" GM OEM receiver without the metal plate (1500 model truck), comparing it to his new replacement receiver:



Bob
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Old 09-12-2011, 03:32 PM   #19
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That hitch is now sitting on my metal pile, waiting to be taken to the recycler. I don`t miss it one bit either. Hard to see in the pic but it was also bending or flexing upward, thus reducing the effectiveness of the WD system. (and its not a pretty sight either seeing your receiver bending up with your trailer hitched up)
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Old 09-12-2011, 06:53 PM   #20
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That hitch is now sitting on my metal pile, waiting to be taken to the recycler. I don`t miss it one bit either. Hard to see in the pic but it was also bending or flexing upward, thus reducing the effectiveness of the WD system. (and its not a pretty sight either seeing your receiver bending up with your trailer hitched up)
As the photo shows, there is a hugh difference in mechanical strength between the two.
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