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Towing 5th Wheel Trailer with 2018 Ford F-150 with 5-1/2 Foot Bed  

Question:

thank for the advice. Im going to move forward in purchasing what you suggested, and you saved me time. One more question Okay I found out my towing capacity is 12700pds, though a fifth wheel recommendation is 10,700, my payload capacity is 2,050pds. My truck is made up of heavy duty for towing. However if Im looking a 5th wheel that is 8400pds, tongue weight 1600. It looks as though with the hitch you suggested is a total of about 200pds. So to me it sounds like the above trailer is within the specs mentioned that it is okay. Just based on the numbers above-ur thoughts? or would I be pushing to close

1

Helpful Expert Reply:

I was able to pull up the online towing specs for your 2018 Ford F-150 and it looks like there is still a somewhat large potential range even within the specs that you provided depending on your axle ratio, drivetrain, and wheelbase. At the low end on your F-150 SuperCrew with the 3.5 V6 engine it shows a 5th wheel towing capacity of 6,500 pounds for the 4X4 model with a 145 inch wheelbase and the 3.55 axle ratio. At the high end your F-150 can have a 5th wheel towing capacity of up to 11,500 pounds for the 4X2 model with the 3.55 axle ratio, 157 inch wheelbase, and 20 inch tires and wheels.

Considering this range I highly recommend checking your copy of the owner's manual for information more accurate to your exact model truck. You can also visit a local Ford dealer with your VIN and they should be able to provide you with exact specs.

The actual length of the trailer is not really a concern as long as you stay within the weight limits of your truck.

As you mentioned in your question with a 5-1/2 foot bed you will need a Sidewinder Pin Box (or similar rotating pin box model) on the trailer in order to make sharp turns without the trailer hitting the cab. I have attached a link that will take you to our selection along with a helpful article that explains how to choose the correct one.

Then for the actual fixed 5th wheel hitch I recommend taking a look at the Reese 16K # RP30047 that features a 2-jaw locking system to provide a secure connection with the trailer along with a quiet ride. Its 4-Way pivoting head also eases hookup and the 16,000 pound towing capacity will give you plenty of safety margin.

Then for the base rails the Quick-Install Installation Kit # RP50087-58 will work perfectly and the included custom brackets will eliminate the need to drill into the frame of your truck.

I have attached a couple short video demonstrations that you can check out as well.

expert reply by:
1
Chris R

Steve D.

3/7/2019

thank for the advice. Im going to move forward in purchasing what you suggested, and you saved me time. One more question Okay I found out my towing capacity is 12700pds, though a fifth wheel recommendation is 10,700, my payload capacity is 2,050pds. My truck is made up of heavy duty for towing. However if Im looking a 5th wheel that is 8400pds, tongue weight 1600. It looks as though with the hitch you suggested is a total of about 200pds. So to me it sounds like the above trailer is within the specs mentioned that it is okay. Just based on the numbers above-ur thoughts? or would I be pushing to close

Chris R.

3/7/2019

Based on the specs you provided it looks like your F-150 may be up to the task of pulling both the overall weight of the trailer along with supporting its pin weight but you may be getting pretty close to capacity when you factor in other items. You are right in considering the weight of the 5th wheel hitch and rails to your payload but also keep in mind that your truck's payload capacity refers to occupants and any added cargo as well. With 1,600 pounds of pin weight coming from the trailer you have just about 450 pounds of capacity left. This means the combined weight of any passengers (including the driver) and added cargo weight can't exceed this number for you to stay within the truck's limits. If you find you will exceed this number then your best option will be to go with a lighter trailer or upgrade to a heavier duty (3/4 or full ton) truck. Even if you end up going with a lighter trailer I recommend adding a rear suspension enhancement system like the excellent Timbren # TFR1504E. These aeon rubber springs will replace the factory bump stops on your truck to provide additional support to allow for a level and smooth ride with the trailer attached. These (along with any other aftermarket system) will not actually increase your payload capacity but they will definitely help your truck better support weights within its limits. I have attached an installation video that you can check out as well.

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