Putting 22.5's on my F-350 dually?
#1
Who has the best conversion kit? How do you recalibrate the speedo? Does the overall confort / ride go in the toilet? Anybody thats done this I'd appreciate some help.
thanks
nick
thanks
nick
#2
Last edited by stecz20; 09-26-2006 at 04:00 PM.
#4
you can get direct bolt on 22.5's from www.brentzwheels.com no heavy adapter needed....
speedo should be no big deal to recalibrate (overall diameter isn't increased that much)
speedo should be no big deal to recalibrate (overall diameter isn't increased that much)
#5
When I put 33" tires on mr f250 it threw the speedo way off. This is an 05 truck. The outside diameter isn't that different than the 17" rims that are on there now?
#6
Shoot a PM to BobbyB here on OSO.
They just did a set of Alcoas on a late model PSD at the Marina he works with. They went through two sets of inner steel wheels before they gave up and went to 4 aluminum wheels across the back. There was nothing but shimmy and vibration.
Here is my take; take it or leave it.
Ford has great factory brakes, but they are not sufficient to for the increase in rotating mass of such adapters, wheels, and tires. The adapters are steel, including lugs and nuts. The dually already has a set of adapters bolted to the axles to make it a dually.
You are now rotating 10 round items on the front axle (tire-wheel-10boltadapter-duallyadapter-rotor/rotor-duallyadapter-10boltadapter-wheel-tire),
and 14 round items on the rear axle. (tire-wheel-tire wheel-10boltadapter-duallyadapter-rotor/rotor-duallyadapter-10boltadapter-wheel-tire-wheel-tire)
That's A LOT of rotating mass, not including the lug nuts and adapter nuts. To get all that to balance perfectly, you are ALWAYS going to be chasing something. Top that off with the fact that you really need to upgrade the brakes to increase the stopping power that you have robbed with adding all that extra rotating mass over stock.
I agree that the look is killer, and the tire life you should get is definately worth part/all of the investment. If it were my money and my truck, and my boat being towed, I would look into a direct bolt on kit, that requires no adapter. To my knowledge, only www.ricksontruck.com (19.5) and www.brentzwheels.com (19.5 and 22.5) offer these options. I would love to go to this look/setup too someday, but to me it is not a perfected science yet, and its more for asthetics, and you are definately compromising the capabilities of the truck.
They just did a set of Alcoas on a late model PSD at the Marina he works with. They went through two sets of inner steel wheels before they gave up and went to 4 aluminum wheels across the back. There was nothing but shimmy and vibration.
Here is my take; take it or leave it.
Ford has great factory brakes, but they are not sufficient to for the increase in rotating mass of such adapters, wheels, and tires. The adapters are steel, including lugs and nuts. The dually already has a set of adapters bolted to the axles to make it a dually.
You are now rotating 10 round items on the front axle (tire-wheel-10boltadapter-duallyadapter-rotor/rotor-duallyadapter-10boltadapter-wheel-tire),
and 14 round items on the rear axle. (tire-wheel-tire wheel-10boltadapter-duallyadapter-rotor/rotor-duallyadapter-10boltadapter-wheel-tire-wheel-tire)
That's A LOT of rotating mass, not including the lug nuts and adapter nuts. To get all that to balance perfectly, you are ALWAYS going to be chasing something. Top that off with the fact that you really need to upgrade the brakes to increase the stopping power that you have robbed with adding all that extra rotating mass over stock.
I agree that the look is killer, and the tire life you should get is definately worth part/all of the investment. If it were my money and my truck, and my boat being towed, I would look into a direct bolt on kit, that requires no adapter. To my knowledge, only www.ricksontruck.com (19.5) and www.brentzwheels.com (19.5 and 22.5) offer these options. I would love to go to this look/setup too someday, but to me it is not a perfected science yet, and its more for asthetics, and you are definately compromising the capabilities of the truck.
#7
A simple tool like the HyperTech PowerProgramer or the Diablo Predator can recalibrate the speedo as well. Remember, you are changing your final gear ratio for towing as well, for the worse by increasing tire diameter. You may need to go to taller gears in your differentials. Your transmission shift points may be way off as well.
#8
Thanks I appretiat the input. I think I'm gonna look into a bigger truck. Probably a 650 its not like I don't need it anyway the 350 isn't any good for towing my 51' OL.
#9
You are quite welcome. A good friend of mine, OutlawMark here on OSO did the conversion mentioned above on the guy who now owns the Horseplay BT. He has done a few conversions, and while they are all seeming to do OK, I don't think any of them are really taxing the towing capability of the truck, or should I state... panic tested the towing/braking capabilities of the truck after modification. Remember all this weight and crap is going to affect the ABS controller too.
Again, I may venture down this path myself, but its only going to be with a direct bolt on, all aluminum setup. BTW, Brentzwheels.com wants $5800 (no shipping) for just 6 aluminum 22.5" wheels.
Again, I may venture down this path myself, but its only going to be with a direct bolt on, all aluminum setup. BTW, Brentzwheels.com wants $5800 (no shipping) for just 6 aluminum 22.5" wheels.
#10
Gold Member

Joined: Apr 2002
Posts: 3,080
Likes: 35
From: Solomons Md
If Jason drives his truck tomorrow i will post pics of it on here. It looks real cool but it does ride rougher. And he did have some problems but they seem to be squared away now.


