How To Fix Loose Fitting On the Demco 5th Wheel Rail Adapter for a 2020 GMC Sierra 2500
Question:
Shipping on my demo dm6333 fifth wheel adapter was fast but I have a problem with the fit of the unit. After the installation and lock down of the unit I have a lot of play from the right upper corner to the bottom left corner so when in tow it sounds like something is about to break . The fit from the upper left to the lower right seems to be ok just a lot of rocking back and forth from the right upper corner to the lower left corner. I don’t imagine this could be normal towing the weight of a fifth wheel camper?This is installed on a 2020 GMC 2500 Sierra
asked by: Donnie S
Expert Reply:
If you are having issues with the Demco 5th Wheel Rail Adapter part # DM6333, you are first going to want to play with the washers i.e. adding more to one side and then taking them away from another. This is explained for you in step two of the installation instructions which I have attached for you.
I spoke with Demco and they stated that you should not be concerned with how the adapter sits in relation to the bed but rather the actual pucks. If one handle feels tighter than another that is a good sign that you just need to adjust the washers but the pucks are also not always perfectly level from the factory.
Product Page this Question was Asked From
Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package - 21K
- Accessories and Parts
- Fifth Wheel Installation Kit
- Adapters
- Rail Adapter
- Demco
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package - 21K
- Shop: Replacement Washer Shim for Demco 5th Wheel Rail Adapter for OEM Factory Prep Brackets - Qty 1
- Search Results: b&w
- Shop: B&W Companion 5th Wheel Trailer Hitch w/ Slider - Dual Jaw - 20,000 lbs
- Shop: B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 20,000 lbs
- Shop: B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 20,000 lbs
- Shop: 5th Wheel Pin Box Cover for Lippert 1621 - White
- Shop: Curt A16 5th Wheel Trailer Hitch w/ S20 Slider - Dual Jaw - 16,000 lbs
- Q&A: Why is Demco GM Rail Kit Adapter part # DM6333 Difficult to Fit Into 2020 GMC Sierra Rail Kit
- Q&A: Should The Demco 5th Wheel Adapter Rails Sit Flush On The Bed Of A 2020 Chevy with OEM package
- Q&A: Replacement Washer Shim .875 ID x .30 Thick for Demco 5th Wheel Rail Adapter
- Q&A: Will Curt R20 Slider Stop Chucking With Curt A16 Head
- Q&A: How to Reduce Play in Mounting Tabs on Demco 5th Wheel Rail Adapter DM6099
- Video: Curt 5th Wheel Trailer Hitches S20 Slider Review
- Video: Review of Demco Fifth Wheel Installation Kit - DM6333
- Search Results: dm6333
- Shop: Base Plate for Tow Bar
- Search Results: rv sumo springs
- Video: Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package Review
- Q&A: Correcting A Demco Adapter 6333 Loose Fit
- Shop: Suspension Enhancement
- Q&A: Recommended Puck Adapter for 5th Wheel Hitch in 2021 Chevy Silverado 2500
- Search Results: demco 6333
- Video: Curt X5 5th Wheel Base Rails Adapter Review
- Video: Curt 5th Wheel Hitch Adapter Rails Installation - 2024 GMC Sierra 2500
- Search Results: pin box
- Video: Review of Demco Fifth Wheel Hitch - Lippert Locking Plate - DM76FR
- Video: Demco Hijacker Autoslide 5th Wheel Hitch Installation - 2020 Ford F-350 Super Duty
- Search Results: al57338
- Search Results: auto slider 5th wheel hitch