CK30 HST gear ratio 4wd front and rear

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Hi all,

does anybody know what the gear ratio is between the front axle and the rear? How many times do the front wheels turn for one revolution of the rear?
Calculating this based on the tire size leads (in my case) to inconclusive results. I couldn't find this number in the manual, and several gears are unspecified so I can't calculate it.
In the end I need this in order to find a very wide (like a mitas traction tr06 31x15.50-15 which diameter is too big) low pressure front tire for loader work on turf (so at least 2000lbs per tire). My rear tires are titan 41x14.00-20.

many thank in advance,

 

[poweredbydiesel]

Here's the answer: 1.63 rev front for 1 rev rear. This is axle output, the front RC needs to be between 1%-7% oversized.

Unfortunately I couldn't find a suitable tire...