I am looking to switch the split rims that are on my 1980 F-600 for regular tubless 20 inch rims. Does anyone know where I might get a set of rims?

 

It depends on what type of wheels you have. If they are the 6 bolt type you might have troubles. You want 22.5 wheels not 20 inch because 20 inch rubber is hard to find and most of the time it is tube type.

 

By definition a 20" rim/tire combo will be tube type and have a multi-part rim. All will have what's called a 5° rim profile. A tubeless rim/tire combo, on the other hand, will be a half size (22.5/19.5/17.5) and will have what's called a 15° profile. In the below diagram the tube type is on the left, tubeless on the right. The correct replacement for a 20" tube type rim/tire is a 22.5" tubeless rim/tire combo. Both tires will have the same approximate outside diameter because the side wall and bead construction of the two tires are, as shown in the diagram, different.

I'm gonna guess that your bolt pattern is the 6 lug x 8.75" bolt circle in a "stud piloted" mount. If that's correct, those are still made new today by Accuride. Here's the link to the Accuride on-line catalog. If you don't want to spend money on new, there should be plenty available used because that pattern has been common for a lot of years and used by all the manufacturers. If I'm wrong about your bolt pattern, I've also linked the "hub piloted" catalog pages. Stu

http://www.accuridewheels.com/studpilot.pdf
http://www.accuridewheels.com/hubpilot.pdf

 

Rep points for truckdog

 

Truckdog

Thanks for the info. As an aside Accuride filed for Chapter 11 last week. I tried to call for more info on rims but could not get through

 

Howdy Brian,

do you really have "split" rims? or are they the completely safe "lock-ring" wheels?

I had 20" "Widow Makers" on my 55 F-600 that Les Schwab Tire (and others due to insurance concerns) would not touch other than to break them down, condemn and recycle.

They did find me a set of 6 rebuilt lock-ring 20" wheels for $195 (ea) which they sandblasted and powder-coated for an additional $22 ea.

Then they sold me 2 new 9.00-20 Toyo radials for the front and 4 9.00-20 recapped radials for the back(Goodyear I think.....pics in my gallery)


Ultimately it would probably be more desirable to get 19.5 or 22.5 inch tubeless tires but I don't think I'll ever wear these tires out! I had the additional problem of finding wheels with the 5 lug BUDD pattern.

Sometimes I wish I had gotten 56 or newer (6 lug) hubs and wheels.......but here I am!



Cheers,



Rick

 

Accuride in Chapter 11? Wow, that tells us how bad the auto industry has been hit. I'll do a Google search and read more about it. Thanks.

You could probably get info from Henderson or Century Wheel. Both are Accuride distributors. Links below to their catalogs. Or like Rick said, go to your local Les Schwab. Am I correct that Schwab's service area extends south into AZ?

Rick's other point is real valid. I doubt that your current wheels are the killer two piece kind that have come to be called "widow makers". Your truck is too new. If your "lock ring" two or three piece rims are in good shape, there's really no absolute need to do the change over. If your reason is to allow you to run radials, you can now get tube type 20" radials and radial tubes that would work on your current rims. Stu

http://www.hendersonwheel.com/Docs/H...ck%20Wheel.pdf
http://www.qtrailer.com/catalog/tires_&_wheels.pdf

 

arkein median or somthing like i forget how its spelt in northern ohio deals with used parts including rims of almost any size i dont have there number infront of me but they sould be easy to find them

 

That isn't good news that Accuride is in trouble they are the largest wheel maker in North America.

 

Rick

5 of the 6 are probably the lock-ring's. One of them the tire guy who has the truck say's he won't touch and he dosen't know anyone who will.

I have found after a week of looking that 6 hole 22.5" rims are rare. 10 hole's are common and 8's are in between.

 

You will be hard pressed to find a tire shop that will work on split/snap ring wheels. If you don't work on them right you can loose your head.

 

How can they be rare if you can pick up the phone and buy them new? Unless you only want used, then it might take some looking. What I've found having spent the better part of 10 years looking for the exact correct Budd part number wheels for my oddball trucks, gas is expensive. Phone calls are cheap.

Since all your lock ring 20s seem ok and you only need to replace the one widow maker, seems more logical to go looking for one replacement 20". Stu

 

Ain't that the truth. For whatever reason, Isuzu produced their NPR's with split-rims circa 1987. In 16". I had a devil of a time getting tires done on that thing, when I maintained it for my brother-in-law's warehouse.

The thing that got me was the 16" tires. At the time, come on, was there really ANY reason to use split-rims with 16" tires? Nope.

The key is finding a tire shop with the "split-rim cage" to work on them

 

Any multi-part rim should be aired in a cage to do it right. There's nothing unsafe about the locking ring style as long as they are in good condition. Fact is, plenty of lock ring style rims are still sold new today by Accuride and Hayes-Lemmerz for Dayton demountable applications. It's the old Firestone RH-5° rims that were sourced from the mid 1940s until the late 1970s that are the killers. Those should be pulled from service. Stu

 

Well the rational for changing the rims was I got a flat on a Saturday afternoon in Phoenix (3 million population and 70 miles from home) and had a hell of a time finding someone to mess with it. I was told that with 22.5" tubless rims (I didn't know about the size difference at the time) tires were much more common and wouldn't have the same problem in the future. Also, the cost of the 20"tires and tubes are almost double the cost of the 22.5" tires. I probably need to replace all 6.

I haven't been able to find a set of used 6 lug tubless 20" rims. I did find a set of new 6 lug tubless 20" rims for around $1300. Tires will run $900-$1100. Ouch!

So, I will probably will replace the one rim and get new 20"tires.

Thanks all for the info