Moving spare tire to rear

[meesda]

What would be the approx. shift of weight if I move a 40 lbs spare from the front of a fiver to the rear bumper. Would the pin weight go down by approx 80 lbs? I know there could be a lot of variables but would 80 lbs a good guestimate.

[Hvyhauler]

rhagfo wrote:

Hvyhauler wrote:
I moved both mounted spares to the rear slide out bumper several years ago for easy access,the covered tires sit on top of the bumper and are bolted to an aluminum rack I made.

The move was "not" payload related.

BOTH spares??

May I suggest you by better tires.

Our 5er rides on Michelin XPS ribs... as noted in my signature, the ribs have been flawless for over 3 years and many thousands of miles.

The 2 st spares are left over from the junk tire days of old and may come in handy for someone else on the road with a tire problem & short distance to go, both are still under 4 years old.

I see tire failures on just about every trip we take and will gladly give a tire / wheel to anyone who needs help and even change it for them if necessary.

I do appreciate your concern though.

[rhagfo]

Hvyhauler wrote:
I moved both mounted spares to the rear slide out bumper several years ago for easy access,the covered tires sit on top of the bumper and are bolted to an aluminum rack I made.

The move was "not" payload related.

BOTH spares??

May I suggest you by better tires.

[Hvyhauler]

I moved both mounted spares to the rear slide out bumper several years ago for easy access,the covered tires sit on top of the bumper and are bolted to an aluminum rack I made.

The move was "not" payload related.

[bid_time]

meesda wrote:
I'm presently towing a 33 ft FW with a 2008 2500HD. We are looking to downgrade both FW and pickup and just trying to figure max pin weight for either a 2016 F150 SuperCab (2000 payload) or a 2016 F150 SuperCrew with HD payload (2400 payload). Not trying to revive any 1/2 vs 3/4 ton debate. We are not fulltimer and we would be well served by a smaller FW. I appreciate everyone input. Thanks

Just buy a TT and you'll automatically lose about 800 lbs of pin weight. That's how I got down to a 1/2 ton towable RV.

[Old-Biscuit]

A 5vr with a GVWR of 10,000# IF you go with the 2016 F150 SuperCrew HD

2016 F150 Towing Guide

[laknox]

meesda wrote:
I'm presently towing a 33 ft FW with a 2008 2500HD. We are looking to downgrade both FW and pickup and just trying to figure max pin weight for either a 2016 F150 SuperCab (2000 payload) or a 2016 F150 SuperCrew with HD payload (2400 payload). Not trying to revive any 1/2 vs 3/4 ton debate. We are not fulltimer and we would be well served by a smaller FW. I appreciate everyone input. Thanks

IMO, don't even consider the SuperCab; go for the SuperCrew and the heavier payload.

Lyle

[Allworth]

If you are that close to overloaded. the spare is the least of your problems.

[Slownsy]

Newer herd of a FW having a spare on front, as said by others most rear bumpers not strong, ? U are trying to get pin weights for 150. Stick with old truck or get a lighter FW or trailer.
Frank.

[ford_truck_guy]

just put 2 cases of BEER in the front to balance the weight

[meesda]

I'm presently towing a 33 ft FW with a 2008 2500HD. We are looking to downgrade both FW and pickup and just trying to figure max pin weight for either a 2016 F150 SuperCab (2000 payload) or a 2016 F150 SuperCrew with HD payload (2400 payload). Not trying to revive any 1/2 vs 3/4 ton debate. We are not fulltimer and we would be well served by a smaller FW. I appreciate everyone input. Thanks

[Me_Again]

What is the issue that you are trying to fix/change?? Are you have a lot of tire issues that are causing you to use your spare a lot?

I highly recommend an all steel ply tire like the GY G614, Sailun S367, Michelin XPS Rib and Bridgestone Duravis R250 for super reliable trailer use.

I took my new XPS Rib spare tire down for the first time since Feb 2005 recently and replaced it with one of the R250 4 year old R250 that got a 1/4 x 20 SS bolt in the tread. The R250 did not loose air as the bolt was just in the tread. I had been thinking about the brand new 11-12 year old XPS RIB hanging there so long, so it was sent off to tire heaven completely unused. BTW I have a piece of 1/2 all-thread also holding the heavy tire along with the OEM cable winch.

Chris

[fj12ryder]

My guess would be that the change would be negligible. Of course by the time you reinforce the rear bumper to handle the weight...

If you feel you're that close on being overweight, you might need to look elsewhere for lightening the load.

[laknox]

rhagfo wrote:

Artum Snowbird wrote:
Weight times distance = weight times distance.

So, a spare tire in front 40 pounds at (distance from center of axles) will equal less weight on the pin.

like this. 40 X 15 = 600 (to location of spare is 15 feet)

then X (at the pin) times (say 20 feet) would then work out X is 30

So.. taking the 40 pound tire off will drop the pin weight by 30.

Use that now to where the tire goes on the back. Maybe only ten feet behind the center of axles. So.. 40 at 10 feet = only 20 at 20 feet.

Removing the wheel takes off 30. Putting it behind (in my case) would take off 20 more. So a loss in pin weight of 50 pounds.

Great math, BUT the tandem axles are not a great fulcrum! :S

Also is the bumper strong enough?? Mine is just back of the axles in an under carriage mount. :B

x2 on the bumper strength. You'd likely need to add another 20 lbs of weight for a bumper beefy enough to hold the spare tire. Even then, you'd likely want to mount the spare as close to the frame as possible to minimize flex.

Lyle

[rhagfo]

Artum Snowbird wrote:
Weight times distance = weight times distance.

So, a spare tire in front 40 pounds at (distance from center of axles) will equal less weight on the pin.

like this. 40 X 15 = 600 (to location of spare is 15 feet)

then X (at the pin) times (say 20 feet) would then work out X is 30

So.. taking the 40 pound tire off will drop the pin weight by 30.

Use that now to where the tire goes on the back. Maybe only ten feet behind the center of axles. So.. 40 at 10 feet = only 20 at 20 feet.

Removing the wheel takes off 30. Putting it behind (in my case) would take off 20 more. So a loss in pin weight of 50 pounds.

Great math, BUT the tandem axles are not a great fulcrum! :S

Also is the bumper strong enough?? Mine is just back of the axles in an under carriage mount. :B