Rear Wheel and Tire question - 1941 Oliver 80 Standard

I am looking at a 1941 Oliver 80 standard that is located 1000 miles from my place.
Rear wheels were widened 3" at some time in it's life, currently wearing 14 x 28 tires which are shot.
One drawback to getting this beast is what to do with the rear tire/wheel set up. I believe a modern replacement for the old 14x28 tire is the 17.9 x28, which are very costly and would look totally incorrect on the tractor.
The wheels appear to have 8 loops or attachment points. The only replacement rims I can locate have 6 loops. Again, big money to change out but at least one could fit a proper looking tire.
Any thoughts from those of you familiar with these tractors? My last Oliver project was a 70 standard, which had rotted out 24' rims that weren't cheap to replace. I am still looking for fenders.

It looks like a drop center wheel. They may still be available. They were used on graders too. I may have seen some on Craigslist. There was an 80 near me that looked pretty good but had a cracked block. My friend has one that needs alot of work that he might sell.
Is this tractor in bend?

A 14-28 between a 14.2r28 and a 15.5r28. 15.5r28 is the usual
replacement. Not common but BKT makes one. If six loop wheels are
what you need a and I sells them reasonable. In the $150 I
believe.

On closer investigation that is a rib mount not a drop center. You want to get away from lock rings in my opinion. Safety concerns.I know they used them for years but they quit for a reason. should be cheap to buy new wheels. Need to be two inches narrower than the tires you want.

Drop center wheel. Goes on a tapered hub and wedges hold it.

Jr1983. I was not correcting you. I think we posted at the same time.

We did I was correcting myself sorry about that.

Hi

The later Oliver 80's used a 26 in drop center rim. The tire size was 13 x 26 and the new size is 14.9 x 26. They used the same rim as on a w 4 ihc or a Case D and probably some others. The 13 x 26 rim is fairly easy to come by and used tires are a little more common. I am not sure what year they changed to the 26 in rim. I have a 47 that my dad bought new with 26 in rubber and 44 that also has 26 in rubber

Russ

The tractor is located in Colorado. I have not seen it in person.
My research says that the 80 Standard came equipped with 24", 26" and 28" wheel options.
I presume the wheel center has an integral clamp which locks on the axle, as I don't see any wheel bolts like my 70 standard has.
Having read all the replies (thanks!) I still don't really understand options. Can the existing centers be used? Will the 6 loop rims available bolt up to these centers?
Not to make a big deal out of this, but options will really drive whether I want to buy this tractor or not. By the time you factor in wheels, tires and shipping......and other unknowns....it may just be too much cost.

(quoted from post at 07:01:55 01/20/17) The tractor is located in Colorado. I have not seen it in person.
My research says that the 80 Standard came equipped with 24", 26" and 28" wheel options.
I presume the wheel center has an integral clamp which locks on the axle, as I don't see any wheel bolts like my 70 standard has.
Having read all the replies (thanks!) I still don't really understand options. Can the existing centers be used? Will the 6 loop rims available bolt up to these centers?
Not to make a big deal out of this, but options will really drive whether I want to buy this tractor or not. By the time you factor in wheels, tires and shipping......and other unknowns....it may just be too much cost.

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Yes the center is reusable. It is a large cast wieght. 6 loop wheels will not work.

Hi Mr. precision

Your last post prompted me to dig into my parts book. The standard 80's that had 24 and 26 in rubber used the same hub part # D-705-V the ones that had 28 in rubber used hub part # D-705-W. So my previous post about using a rim off of w4 or case D will be wrong. The rim part # for the 28 in tires is AS-7002. This rim was also used on the Oliver 90's and 99's that had 28 in rubber. I have seen quite a few Oliver and Cockshutt 80 standard but never one with 28 rubber, so it could be a rare option. I agree that putting the bigger tires on the tractor will look incorrect. I suppose you could look for a different set of hubs and go with the 26 in rubber, but if the hubs are seized on the axels it is a nasty job to get the off. Good luck on what ever you decide.
Cheers
Russ

Thank you, Russ
The wheels on the tractor were modified at one time, according to the current owner. A 3" section was added, which can be seem in the picture.
So if I can get the wheels off, can smaller width 'drop center' rim be used using the 8 attaching points seen in the picture? I am not familiar with this type of rim.Or would any 24", 26" or 28" wheel work if the clamp arrangement is the same?

Hi. In my experience which is limited, on the hub that is presently on the tractor the smallest rim size will be a 28 in, so you will have to use the same style of split rim only without the 3 in piece in it, and use a 14.9 x 28 or 13.6 x 28 tire(new size). If you can't find a split rim that is in stock condition look for a 28 in rim that is beveled and is the proper width for the tire you want to use. To find a bevel rim it will probably require a trip to a wreckers unless someone on the board can help. To use a drop center like the Olliejunkie posted will be a 30 in tire which is a big tire for the 80 standard and in my opinion would look out of place. If you change you hubs to a smaller size, you can use a 26 in. drop center style rim. As far as I know the 24 in rim was a split which the same style as is on the tractor at present. All the mounting hardware on the 80 standard in the same. Some you might consider is going to a tire shop a get them to give the tire heights on the tires you might want to use. I would check the tire height on the following 3 tires sizes 14.9 x 26, 14.9 x 28 and 13.6 x 28. Other things to consider is what the tractor will be used for. What is the condition of the rims at present are they useable and how wide are they? The same tire on a narrow rim will sit higher than on a wide rim. As others have said I am not a real fan of split rims, however they were used for many years. Cheers Russ

Here are pictures of the outside and inside of the wheels. I would guess that the hubs fit over spline on the axle, and bet they are a bear to remove.
So if I read this right - the locking tabs are removed and the rim slips off the cast center. Is the rim then considered a "drop center" rim, or am I misunderstanding how the rim attaches to the center? 28" drop center rims are available.
Sorry for the repeated posts..... I don't have anything in the collection that resembles this wheel and am struggling to understand what, if any, options I have to replace the rims currently in place.

the axle is tapered no splines

Hi First of all I don't want to start any arguments or cause any hard feelings. I have 2 parts Oliver 80's with one hub removed, off each they are both splined, and I picked up a set of hubs that are also splined they came from a different tractor. Mr. precision you are right if you take of the 8 nuts and wedges the rim will slide off of the hub. What you have on the tractor at present is a split rim with a bevel. If you look at Olliejunkie's photos that is a drop center rim. The inside diameter of the rim is smaller than the diameter where the tire is seated. The center of the rim is placed over the hub and is attached with the wedges and nuts. The smallest drop center rim that could be used on the hub is 30 in. You might be able to find a double beveled 28 in rim that will fit your hub. This is a side note Massey 44 standard use a 30 in dropped center rim and a Massey 44 Spl standard used a 30 double beveled rim. Both use the same size of tire but the rims are not interchangeable. You are right some of those hubs can be really hard to remove, and there is no way to tell until you start. Cheers Russ

(quoted from post at 16:45:25 01/22/17) Hi First of all I don't want to start any arguments or cause any hard feelings. I have 2 parts Oliver 80's with one hub removed, off each they are both splined, and I picked up a set of hubs that are also splined they came from a different tractor. Mr. precision you are right if you take of the 8 nuts and wedges the rim will slide off of the hub. What you have on the tractor at present is a split rim with a bevel. If you look at Olliejunkie's photos that is a drop center rim. The inside diameter of the rim is smaller than the diameter where the tire is seated. The center of the rim is placed over the hub and is attached with the wedges and nuts. The smallest drop center rim that could be used on the hub is 30 in. You might be able to find a double beveled 28 in rim that will fit your hub. This is a side note Massey 44 standard use a 30 in dropped center rim and a Massey 44 Spl standard used a 30 double beveled rim. Both use the same size of tire but the rims are not interchangeable. You are right some of those hubs can be really hard to remove, and there is no way to tell until you start. Cheers Russ

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I think you are right on Russ. I have not seen that style wheel and could not see very good in his first picture. I have had 70s with drop center and dimple wheels. I wonder if a simple wheel would fit that hub?