Farmall 656 tires

[Haykid]

Have a Farmall 656 that has 16.9-34 on the rear and 6.50-16 on the front. I’m looking to put some wider tires on the front since I’m going to be using it for hay so I don’t want them to cut in as bad as these are but I also hate the look of pizza cutters on the front. I’ve looked at previous forums and couldn’t find much so I was hoping someone has been through this since I would like to keep it as level as possible I didn’t know what size tires to jump to so the front end wasn’t way high
Thanks
Haykid

 

[urbancase]

Not an expert but another way would be to duel the back, and change rim and tires on the front. The dual tires don’t have to be new just hold air to spread the weight. After I said this I took for granted your round baling, if small square then changeing rear rims. I have picked up tires and rims on auctiontime in the past. Good luck

 

[caterpillar guy]

From 6.50's you jump to 7.60 then usually either implement tires or 10.00 16's. Other wise you would need to drop back to 9.5L-15's or 11L 15's.

 

[NDIHC]

My Hydro 70 came with 7.5L-15. A little wider than 6.50-16 but not sure how they compare height wise.

 

[Wisconsin Ron]

Get some 9.5L-15s on there.

 

[m16ty]

I’m running 10.00-16 on my 806, which is basically the same size as your 856. Also, some people run 11L-15 which work well too.

 

[560Dennis]

Wide or narrow front ?
in the hills ?
pulling baler with wagon ?

 

[BarnyardEngineering]

Wider is going to mean taller, so you're going to have to deal with the tractor running uphill to a degree no matter what you choose.

I can tell you from experience that a few inches in width isn't going to make an appreciable difference in how much the tractor cuts in up front. For sure it's not going to go from cutting ruts to floating across the top of the ground. Still going to cut ruts even if you double the width of the tires. The disadvantage to wider tires is when they do go down they are that much harder to get out than a "pizza cutter" type tire.

Something else to consider is the rim width and clearance between the tire and the "knee" on the front end. The way IH tractors are designed the stock tires on the stock rims run awfully close. If you try to squeeze 9.5L15's on your current rims, they will rub. You'll need the correct 8" wide rims with the correct backspacing. Standard wagon wheels will not work.

 

[jwal10]

9.5-15 4 rib instead of 3 rib.
Get some white wheels made with the right back spacing. So many have the wheel on backwards, looks odd to me. Love the look of the white wheels. 16.9x34 is nearly the same outside diameter as a 15.5x38 (shown below) that most Farmalls had here. Good combination to keep tractor level(er). Is your tractor on Cast centers or steel disk wheels? My 656 was the early model with the white grill like shown in picture below....James

1967 Farmall 656 Tractor - Diesel

2WD, Wide Front, International Harvester 4.6L 6-cyl Diesel Engine, Shows 9,049 Hours, (1) Remote, 540 PTO, 3PT, Open Cab, Spring Padded Seat, 2 New Batteries, 15.5-38 Rear Tires, 19.5-15 Tires. Seller states it has been kept in the shed. *extra filters

www.marshallbid.com

 

[Haykid]

It’s a wide front and will be pulling a small square baler with a wagon most of the time. The rears are steel disc wheels. I’m fine with getting new rims as one of them is bent anyway so I was thinking a set of 9.5l-15 or 11l-15 would be nice but I didn’t know what it would do as far as sitting way high in the front

 

[Jim.ME]

It’s a wide front and will be pulling a small square baler with a wagon most of the time. The rears are steel disc wheels. I’m fine with getting new rims as one of them is bent anyway so I was thinking a set of 9.5l-15 or 11l-15 would be nice but I didn’t know what it would do as far as sitting way high in the front

With just a bit of searching on the web you can find the diameter for any tire (tractor, auto, truck, implement, trailer, etc.) size you are looking at, often if you search a specific brand, you can find a diameter for the actual tire you are looking at. Compare those diameters to the diameter of your current tires to get an idea of the height change. Theoretically a 1" difference of diameter will change the height 1/2".

 

[ss55]

With just a bit of searching on the web you can find the diameter for any tire (tractor, auto, truck, implement, trailer, etc.) size you are looking at, often if you search a specific brand, you can find a diameter for the actual tire you are looking at. Compare those diameters to the diameter of your current tires to get an idea of the height change. Theoretically a 1" difference of diameter will change the height 1/2".

7.50-16 should fit on your existing rims, check your rim width to be sure how wide a tire can be mounted. Floatation tires, 4 rib tires and used pickup snow tires would cut in less than tri-rib tractor tires. 6.50 is equivalent to 165mm wide in metric, 7.50 is equivalent to 195, 9 is equivalent to 225, 10.00 is equivalent to 255mm. Worst case you may have to reverse the rims to get extra clearance for wider tires or go to new rims.

 

[m16ty]

Delete, duplicate post.

 

[m16ty]

7.50-16 3-rib are roughly the height of 11L-15 4-rib. I know this because I changed tires on one of my tractors and measured beforehand

 

[Haykid]

7.50-16 3-rib are roughly the height of 11L-15 4-rib. I know this because I changed tires on one of my tractors and measured beforehand

Thank you that’s exactly what I needed. I did some measuring and I found a set of 11l-15s on Facebook marketplace I’m going to try. Thanks everyone for the reccomendations

 

[dhermesc]

You will like the 11L - 15s. We have that size on the front of our 706 - wide enough to keep the tires from cutting to much when carrying a big round bale on the loader.

 

[m16ty]

Thank you that’s exactly what I needed. I did some measuring and I found a set of 11l-15s on Facebook marketplace I’m going to try. Thanks everyone for the reccomendations

You're going to have to make sure you get the right backspacing for them to not rub. In the pic above I was just doing a test fit with the tire off of my 1850 Oliver. They fit fine but I couldn't find another set of wheels with the same backspace anywhere. Ended up just buying a couple of new wheels, cut the centers out, and welded them back in with the backspace I needed.

 

[Haykid]

You're going to have to make sure you get the right backspacing for them to not rub. In the pic above I was just doing a test fit with the tire off of my 1850 Oliver. They fit fine but I couldn't find another set of wheels with the same backspace anywhere. Ended up just buying a couple of new wheels, cut the centers out, and welded them back in with the backspace I needed.

This set I found came off a 856 so I’m hoping the rims have the right backspace to fit a 656 front as well