Combines Better Rear Flotation

18.4x34IJIJ Thats pretty small for my area. Mostly 28l26 on all the different makes of combines here. Not sure about the Gleaner, but on our 9790 Massey we have huge rear tires on it. I can't remember the size but they are as wide as a 35.5x32 front tire. Its a Firestone logger tire. We have 710 metric duals on the front.

To clarify, I am talking only about the rear tires. I will be using 76X50 - 32 on front that are 4 ft. wide and 78.5 inches tall (must use axle riser to use these). I wantd to use the 28l 26 on rear but would have to be offset wider and puts too much leverage on the spindle assembly. The 18.4 X 34 will give over 50% more carrying area on ground than the 16.9X26 I currently have.