towing fifth wheel with F150
10-14-2014, 03:13 PM
#22
Senior Member
No problem. You do know that running 20" E tires (34" circumference) reduces your 3.73 rear end to an effective 3.29 ratio, and I will run 3.31 (on 30" circ. tires), so I will have a slight rpm advantage compared to your setup?
10-14-2014, 05:46 PM
#23
Ok been sitting watching this thread, and while my trailer is not a fifth wheel it is a Gooseneck. I think you will be fine, if you keep the size under control. Mine is about 7K loaded and can go much higher(it has a 16K plus max GVW). Mine is about 1k pin weight loaded and the stock truck just sits level when loaded with no bags etc. It is very stable and easy to tow with the 5.0L and 3.55 gears. As Ron AKA stated, usually the pin weight is pretty constant and increases slowly with load compared to a bumper pull. Might add that my load is pretty prone to instability since its live animals that weigh over 1200lbs each.
The thing I find funny is when i did a build on a 2015 that the max payload and tow now seem to be standard 6 lug wheels instead of 7 unless I missed something. This would seem to put in doubt the need for the 7 lugs for heavy duty use as long as you have the 9.75 rear end which most 2011 to 14s do.
The thing I find funny is when i did a build on a 2015 that the max payload and tow now seem to be standard 6 lug wheels instead of 7 unless I missed something. This would seem to put in doubt the need for the 7 lugs for heavy duty use as long as you have the 9.75 rear end which most 2011 to 14s do.
10-15-2014, 12:16 PM
#24
ColdWar Vet-USN Shellback
No rpm advantage for you...
Thank You, very much!
10-15-2014, 12:37 PM
#25
Senior Member
...
The thing I find funny is when i did a build on a 2015 that the max payload and tow now seem to be standard 6 lug wheels instead of 7 unless I missed something. This would seem to put in doubt the need for the 7 lugs for heavy duty use as long as you have the 9.75 rear end which most 2011 to 14s do.
The thing I find funny is when i did a build on a 2015 that the max payload and tow now seem to be standard 6 lug wheels instead of 7 unless I missed something. This would seem to put in doubt the need for the 7 lugs for heavy duty use as long as you have the 9.75 rear end which most 2011 to 14s do.
With the 6 lug HD Payload 17" steel wheels, the rear GAWR is only 4550#. Maybe they could just get the 6 lug steel weight rating up to 2275#
.
10-15-2014, 01:26 PM
#26
Senior Member
10-15-2014, 01:51 PM
#27
Senior Member
Canadian Tire wanted $440 each when I was looking.
. Went down to the LT245/75-R17 for $270 ea instead.
10-15-2014, 07:54 PM
#28
Senior Member
Yes, there seems to be an amazing rule in tire pricing. The price is inversely proportional to the amount of rubber in the tire. I just put set of Michelin M/S2 tires on my F150 truck for just over $600 at Costco (set of four, not one tire!). 15" tires with way more rubber than you find on an 18" or 20". This "large" tire fad is just a way of sucking more $$'s out of vehicle owners.
10-15-2014, 09:48 PM
#29
Senior Member
Yes, there seems to be an amazing rule in tire pricing. The price is inversely proportional to the amount of rubber in the tire. I just put set of Michelin M/S2 tires on my F150 truck for just over $600 at Costco (set of four, not one tire!). 15" tires with way more rubber than you find on an 18" or 20". This "large" tire fad is just a way of sucking more $$'s out of vehicle owners.
10-16-2014, 08:47 AM
#30
ColdWar Vet-USN Shellback
And it diameter is 32.4" with the factory ones being P275/55R20 at 31.9".
Last edited by RedOne; 10-16-2014 at 08:50 AM.
