I am looking for a FW Toy Hauler. I have been looking at the tow rating of my truck. I believe it is about 16,000 max. I have been redoing this truck. The 6.0L has been resealed and had bullet proof external oil cooler and BPD EGR Cooler and ARP studs. I have also put upper and lower ball joints new steering gear box and drilled and slotted rotors in the front. Going to put a 4" exhaust and sct with a tow tune. The new trucks have a much higher tow rating. I know the 6.7 has more HP and TQ but the frame and brakes seem to be the same. Even before the engine brake was added the tow rating was much higher than my 06. Are they just going off of engine HP and TQ or am I missing something?


Any one towing with a similar set up to my truck pulling upwards of 18,000 to 19,000 GVRW trailers. If so, how does it tow?


Thanks

 

You can find your towing guide here:
Towing Guides | fleet.ford.com


There have been some changes. Brakes and been increased, frame has been strengthen and additional cross members added.


Your issue is going to be payload. An 18K FW toyhauler is probably going to be pin heavy unless you load it correctly to bring the rear down.


You are looking at a pin wt of about 3600 lbs. Your axle right now is probably at 3200 or so pounds. So that would make 6800 over the axle.


Check your tires as well. Can they stand that much?

 

Thanks for the reply. I checked the brakes today but two different companies list the same part number for 2005- 2012. So no change in rotor size with the 6.4 and 6.7 motor, yet the towing numbers went up with each new motor. This is my question. I can not find the frame improvements either. It is very possible they did add something but I just cant find it. Also the rear diff seems to be the same.


Thanks

 

towing numbers can go up with hp/TQ inprovements too.


6.4 put out 350 hp and 650 TQ.


6.7 400/800


2015 6.7 even more.

 

I think it is only the HP/and TQ......Can't find much else. That is why I am trying to find people on this site towing 18,000-19,000 lbs with these trucks to see how they are doing. Again I have done the BPD upgrades and ARP studs so I should be able to tow this type of weight with a tow tune on an SCT. I have even added drilled and slotted rotors in the front to help with heat.

 

Remember that no matter what you change to your truck the ratings: GVWR,GAVR and GCVWR won't change, they're set from the factory. if you exceed them you'll be at fault and will be liable for anything...

My suggestion is that buy what you can tow within specs... be safe and have fun!

 

rear axle ratio is a factor in towing capabilities.

 

This is a bit "apples n oranges" but my '13 350 6.7 SRW 2WD weighs 4580 Front/3360 Rear. Front GAWR 5000, Rear GAWR 6730. Our 5th (non-toy hauler) weighs 12780 with 3020 on the pin (24%). With the weights you are talking I would expect the pin to come in around 4625 (25% of 18500). This would put me over on the rear by about 1255#. I would expect "similar" weights and GAWR from your '06. A trip to the CAT Scale will tell you what the rear axle weighs and the yellow sticker will tell you the GAWR. The calculator will tell you how much cargo you can load on the rear which will let you estimate a max trailer weight. Sorry to say but I expect you'll be wanting a DRW for that much weight.
The CAT Scale is your friend.

 

Thanks for the responses. I have a 3.73 rear end and most of the FW Toy boxes I am looking at have about a 3200lb pin weight and about 13000-14000 empty weight.


Thanks

 

You will need to calculate the fully loaded GVW when figuring pin wt (payload against the truck).

 

A 14000# 5th would put me about 100# too heavy on the rear axle.

 

My '06 owner's manual shows that our trucks are rated for a 12,500 trailer. This assumes that the pin weight does not cause you to exceed the GVW of the truck.

The load that you are considering would put you over those limits. Would the truck handle it? Yep.

Lou Braun