According to my contact at Curt, you could use the Gooseneck Flat Plate, # C65500, and mount it directly to the bed, assuming the bed is at least 1/4 inch thick steel, on your 1996 GMC TopKick Lo-Pro. In order to mount the flat plate to the bed you will need to use at least six 1/2 inch Grade 5 mounting bolts. By using this installation method, he can not guaranty the exact weight capacity but it should be close to 20,000 pounds.
Since there are no custom rails available for your truck,... view full answer...
Depending on how your Topkick is equipped, you may need up to 3 items to install a brake controller.
If the vehicle does not already have a trailer wiring harness you will first need to install a 4-way wiring harness. Since you seem to have a heavy-duty trailer, we recommend a heavy-duty powered converter, # 119290KIT, rated for 15.9 amps.
Next you will need a 4 and 6 Way Installation Kit, # ETBC6. I have included a link to the installation details for this item. This will provide a required... view full answer...
Since we don't have a custom fit wiring harness for your C6500 what you'll need to do is hardwire in a brake controller that is compatible with your electric over hydraulic brakes on your trailer.
You'll first need to start with a 4-way part # 119250KIT unless the vehicle already has one.
From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached... view full answer...
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