Tractor Sizing Case Farmall 75c with R4 tires

[retiredwill]

I'm currently seriously looking at purchasing a Case 75c. I think that R4 tires would work best for me. I have a big problem finding a good picture of a Case 75c with a cab and R4 tires. Searched the Internet for hours, checked with several dealers. No luck. Can someone help me. Wil

 

[TSO]

What will pictures help you with ???

 

[retiredwill]

Hi TSO. I just like to see how low the Case 75c sits when equiped with the R4 tires. The standard rear tire for a 75c is 16.9-30. The R4's are offered in front with a 12.5/80-18 and the rear with a 16.9-24 or 19.5L-24. I assume that the Tractor sits about 6 inches or so lower with the R4's. I also asked the local dealer if the R4's can be adjusted for width like you can with the R1's. He has no answer for me.

 

[MtnViewRanch]

Here is an open station with R4s, at least gives you an idea.

No you can not get the tires set in as many widths as you can the AGs.

 

[retiredwill]

Thanks MtnViewRanch. That is a pretty good picture.

 

[Sawyer Rob]

I'm NOT looking through all of these 75C picts. to see if the exact pict. you want is there, but you can!

Bing Images

SR

 

[retiredwill]

Thanks SR.

 

[MtnViewRanch]

Here is another No cab pics though.

 

[farmer2009]

If I remember correctly the 19.5L has a taller sidewall and will give you more ground clearance. Be careful with the pictures the 75c use to have a low profile version. So make sure you aren't looking at at LP. The fenders are different.

 

[w1ebb]

Hi TSO. I just like to see how low the Case 75c sits when equiped with the R4 tires. The standard rear tire for a 75c is 16.9-30. The R4's are offered in front with a 12.5/80-18 and the rear with a 16.9-24 or 19.5L-24. I assume that the Tractor sits about 6 inches or so lower with the R4's. I also asked the local dealer if the R4's can be adjusted for width like you can with the R1's. He has no answer for me.

I don't understand why you want to "low ride" your new tractor, but if you use your imagination, you can see the small-tired tractor in your mind. I did not look up any tire sizes but if your chosen tires are 12 inches shorter than stock, the tractor will sit 6 inches lower. That means 6 inches less ground clearance, and 6 inches less tire in the fender well. This also means a 6 inch lower center of gravity and significantly lower gear ratios due to shorter tire rolling distance. It also works the same (but opposite!) way when going to a taller tire.
On a 4wd tractor, you want to keep the same size ratio differences between the front and rear tires to keep from binding (and possibly breaking) front axle, drive shaft, and/or transfer case, and also to keep the tractor sitting level (this last part also applies to 2wd tractors too). Good fortune!

Scott