Split Ring 9x20 to Dayton

EBTaylor · 02-12-2022, 01:49 PM

Hello all wanting to swap out my older 9x20 tube split ring for dayton /donut 22.5 inch rims . All i can find is the 8.5 inch wide will a low profile like a 295/80/22.5 work or will it throw off the spacing on the back wheels? the 11R22.5 are too tall /big around they will rub in the front. Thanks in advance.

magnakansas · 02-12-2022, 03:30 PM

dayton wheels have spokes. they can be found with 20" and tubes, usually a two piece or three piece rim.

I replaced my 20" rims with 7.5' wide 22.5" diameter tubeless rims. I bought my rims used from truck salvage yard for $35 each. Good used rubber cost me $125 each.

the 7.5" rims are less common than the 8.25" I do not need or want the wider rim. I went with 10r22.5" F load range and suit me fine... the 10r are less common.

I have read in many places that the swap from the 20" to the 22.5" is just a bolt on deal. If you go to the wider rim. I think you should make certain you have at least 1" between the rear tires.

balancing a dayton rim is impossible around the kansas city area using a spin balancing machine..... no one has the adapters to mount the tire on a spin balancer. So you can use the old spin and balance method on a front hub, or an old bubble balancer if you can come up with the adapter to use one.

my daytons are on a 1958 international harvester/wayne

call me if you wanna talk tires 7852077600
william

EBTaylor · 02-12-2022, 05:59 PM

Thanks for the response .Im having trouble finding the Dayton wheel in a 7.5 ( or finding any period) here in the central texas area.

magnakansas · 02-12-2022, 06:06 PM

Call or look online at truck salvage. The cheapest I found was in florida for $20 each but you had to buy a pallet of them. You have to specify 7.5" they are out there.... Mine came from kansas city - about an hour from me.

william

Jolly Roger bus 223 · 02-13-2022, 03:25 PM

accuride has brand new steel white rims for about 100$ each.
dayton spoke is an open center rim and it is a two piece meaning the rim is one piece and the ring that holds the tire on is seperate with a single split in it.
they are not the widow maker rims.
most shops try to play stupid and dont want to do them so you might have to go to the older tire shops in your area.
they are still widely used in my area but more trailer than tractor(meaning semi tractor). alot of shops do not have a way to balance them and there are options.
find a real old school shop that has the adapter for there spin machine or find one that has the old bubble level.
or try the balancing beads which i have only looked into but not much research.
but any tire shop up to todays safety standards are not supposed to set a bead on a tire without the tire being caged.
yes have done it and will probably do it again in a bind.
if the shop says NO then find one that isnt scared?
walmart, pep boys and those places are not it?

EBTaylor · 02-13-2022, 04:13 PM

I've heard them called ,open faced,Dayton,tubeless demountable ,donut ,etc,etc,I have the old 9x20 split ring and I would like to convert to the "tubeless" no one in the Austin Tx area will touch the split rings .one of the bigger shops used to until the guy who did it "retired" . I can still get the 9x20 tires and do it myself but I'm concerned about having a tire issue out on the road and not being able to get a tire or find someone who will fix them .I already had to limp home on a leaking tire about 40 miles took forever. Ill keep looking for some used 7.5 inch rims . The 8.5 are available but I don't know what (if any) tires would work on my bus with them. They have to be low profile or the fronts will rub.thanks for the replies I'll find some eventually or just bite the bullet and get the 9x20s.

Jolly Roger bus 223 · 02-13-2022, 04:38 PM

i grew up in texas and still have family there.
i swear the oilfield is probably still running them and has a mechanic that will do them.
austin aint that far away from houston? get away from the cities and look at mechanics trucks running the roads.
i have advanced maitenance near me and if my dad was still alive i would have names for your area just get out of town and look for the old school garage.
take your tires and rims with you.
look for an old school tractor garage i know they aint scared of them.
an 8 should fit fine just match load rating.
i have also read the 9.5 would be ok but i have not done the swap myself? yet
there was a thread here from bennys tire service or something close to that had the knowledge but was a butthead.
i have even bean told the 9inch tires will work on the 7-1/2" rims.
which brings up the spacing in the rears

Jolly Roger bus 223 · 02-13-2022, 04:49 PM

one more thing?
filling out your profile?
with your specific bus will help us help you faster than asking a question.
year model does matter.
actually need to know what rear end with needing low pro on the front.?
what are you working with

mmoore6856 · 02-14-2022, 07:56 AM

Quote:

Originally Posted by Jolly Roger bus 223

accuride has brand new steel white rims for about 100$ each.
dayton spoke is an open center rim and it is a two piece meaning the rim is one piece and the ring that holds the tire on is seperate with a single split in it.
research.

dayton is not always a 2 or 3 piece rim as i have tubeless dayton (1 piece) on my bus it is a real easy wheel to change (way easier than budd or pilot mount)if you want 10 x 20 tires you need the 7.5 inch rim. (check a bus junkyard for these) it you run low profile (295,285 , 275 or 11 r 22.5 you will need a 8.75 inch rim as the tire needs that extra width so your tire is flat to the road and will wear properly

Booyah45828 · 02-14-2022, 10:03 AM

Quote:

Originally Posted by EBTaylor

Hello all wanting to swap out my older 9x20 tube split ring for dayton /donut 22.5 inch rims . All i can find is the 8.5 inch wide will a low profile like a 295/80/22.5 work or will it throw off the spacing on the back wheels? the 11R22.5 are too tall /big around they will rub in the front. Thanks in advance.

Those low pros are actually wider then an 11r, but they're about an inch shorter in height. I'm not sure how/where you're rubbing at on the front, but that needs taken into consideration. So rubbing in the duals might happen if you're already close. What's your current tire size and how much space do you have between duals now?

They still make one piece tubeless dayton/cast spoke rims. I don't think they make the 2 or 3 piece tube type rims new anymore. You can find a lot of either of them used, just have to know where to look.

Those low pro's will work fine on an 8 1/4 rim, so I imagine 8 1/2 would be fine too, but I've never seen an 8 1/2 wide rim. They make lower profile 22.5 inch tires then that 295/80r22.5 if you're that close to rubbing, but they'll cause the bus to ride even more like a log wagon.

EBTaylor · 02-14-2022, 11:53 AM

Sorry I meant 8.25 the 295/80 would work height wise but I'm concerned about the spacing in the back. I have a 96 blue bird B7 on a chevrolet the 11r would rub the actual body of the bus because of the extra height.

Booyah45828 · 02-14-2022, 02:04 PM

What's your current tire size and how much space do you have between duals now?

EBTaylor · 02-14-2022, 02:11 PM

9x20 2 1/8" maybe 2 1/4 havent done any more than just a quick measurement with a tape measure .

Booyah45828 · 02-14-2022, 04:00 PM

With 9.00x20's currently equipped, 10r22.5 and 7.5x22.5 rims are near identical to what you have. You'll have no issues 99.9% of the time doing this swap.

Now, there's a possibility you could run 8.25x22.5 with 11r22.5 tires and have no issues, They're an inch wider then the 10r22.5/9.00x20, but having 2 inches or so of space with the current 9.00x20, you'll technically have around an inch with the 11r22.5

I would not try and run a 295/80/22.5 as I feel it being wider then an 11r22.5 would make it too close for comfort. Go with a 275/80r22.5 if you're needing clearance for an 11r.

EBTaylor · 02-14-2022, 05:07 PM

The 11r would actually be my preference but I think they would rub the cab / body of the bus . I'll just have to keep searching for the 7.5's.

Booyah45828 · 02-15-2022, 08:13 AM

275/80r22.5 works with 8.25 rims. They're an 11r width at a 10r diameter, so they'll work with 8.25 rims and will very likely not cause issues with your situation. A 10r should be on a 7.5 rim, although some 10r tires say they can be mounted on 8.25 rims. the 275/80r22.5 mounts easily on the 8.25 rims.

Accuride still makes 7.5x22.5 and 8.25x22.5 rims new the last I checked. Talk to a big rig tire shop and they should be able to set you up. Some might even have used/recon'd rims for sale as well.

EBTaylor · 02-15-2022, 07:35 PM

Good news, several of the local truck tire places have assured me the 10r will do just fine on the 8.25 wheel/rim especially on a vehicle not getting overloaded with freight. They all explained the 7.5 is ideal but they have never seen/heard of anyone having problems after doing it. Thanks for all the replies and advise.

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