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Farmall & IHC Tractors Discussion Forum

Front tire size

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Al in Il.

06-11-2019 15:08:40

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Got a Super M with factory wide front and very good Firestone 14.9x38 rears. Front tires were junk 7.50x16 snow tread, truck, wagon, etc. not the 3 rib style when I bought it. Question - does anyone have 14.9's on the back of their M/SM and what tire size do you have on the front. Thinking of putting new 3 rib 7.50's on it. According to the local tire dealer, there is about an inch difference in height between the 6.50 and 7.50. Not much really.

The old tires were about a half inch away from the steering arm on either side. Didn't really like how close it was. Maybe this is kind of normal for a 7.50? Thanks for your info.

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06-14-2019 11:57:36

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 Re: Front tire size in reply to Al in Il., 06-11-2019 15:08:40  
That's the way it should look.

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06-14-2019 10:54:33

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 Re: Front tire size in reply to Al in Il., 06-11-2019 15:08:40  

Here is my Super M with 14.9s on the rear on 12 "inch rims and 6.00 X 16s on the front. I think it looks OK this way???

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Al in Il.

06-14-2019 12:47:01

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 Re: Front tire size in reply to mjb1972chev, 06-14-2019 10:54:33  
Yes, looks good alright. I went ahead and put 6.50's on mine and it looks just fine too. As DeltaRed had said, 7.50's would be to big in most respects.

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06-12-2019 04:56:22

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 Re: Front tire size in reply to Al in Il., 06-11-2019 15:08:40  
My M came with nearly new 7.50-16 tri ribs on the stock front wheels. They look ridiculous and make the tractor run uphill. I hate them but I have no other use for them so I guess they stay.

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06-12-2019 04:48:17

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 Re: Front tire size in reply to Al in Il., 06-11-2019 15:08:40  
We had 6.00x16's on everything but the '39 H, it had 5.50x16's. The SM-TA got 6.50x16's one day and they really didn't seem any wider or taller than the 6.00's. Never had 7.50x16's on anything. They really should be on a 6 inch wide rim.
I'd like to modify some 6x15 rims to bolt to the stock cast wheels on my Super H with the loader. I have 6.00x16's on it now, a 6 ply and an 8 ply matched brand, think BFG.

Had 11Lx15's on the frt of the 4010 WFE. The tierods were totally wore out on a tractor with 2500 hours? Running it the 20 miles home from the auction I wore the last of the 3 ribs off and wore thru the first 2 plys of the casing on one. Dad was taking it another 20 miles on the road and made it 5 miles and blew a front tire. Spent the rest of the day getting frt tires replaced. Put 11Lx15 implement tires on it. Steered fine except on sharp turns when you needed brakes anyway. Ran them for 3+ years with no appreciable wear.

I priced rear tires a couple times the last year for my M. Has 13.6x38. 14.9x38 are stupidly expensive. I'd like to put 15.5x38's on it, local Firestone dealer has a great price on 15.5 SAT2's. But reworking my 11 or 12 inch rims into 14's or new DW14x38's are roughly $350 each. $300 each plus 100 mile ride to pickup and 100 miles home. Think I'm going with a 13.6x38 Mitas. Really wanted Firestone, but has to be made in USA.

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caterpillar guy

06-12-2019 03:14:32

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 Re: Front tire size in reply to Al in Il., 06-11-2019 15:08:40  
Our MD has 14's on it with 6000or 65's would have to look. It looks fine. Not running down hill or up hill.

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06-11-2019 17:41:12

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 Re: Front tire size in reply to Al in Il., 06-11-2019 15:08:40  
7.50s are too big for those original 4" wide rims. Put 6.50 16 on. It will be just fine. I have a superM with 13.6x38,another with 14.9x38.Both have 6.50x16 and look just right.They also have wide fronts,too.I have another M with 12.4x38 and 6.00 16.Tires are too small,but look 'balanced'.My loader M has 7.00 16 truck tires.They look a bit large,but carry the load better than narrower tires.

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Al in Il.

06-11-2019 18:38:03

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 Re: Front tire size in reply to DeltaRed, 06-11-2019 17:41:12  
DeltaRed - exactly the info I was looking for. Fits my situation perfectly. Thanks for posting the reply.

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Roger Tomfohrde

06-11-2019 15:52:33

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 Re: Front tire size in reply to Al in Il., 06-11-2019 15:08:40  
Most Ms came with 6.00 16 unless someone had a loader on it. our 560 had 6.5 but when the 686 came that had the 7.5.

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