Tractor tires are designed to have low ground pressure because farmers do not want their cultivated land compacted.
The packing down of snow by the tractor driving over it before it gets blown is not a problem. Truck tires on 18 wheelers where tire pressures are over 120 pounds per square inch are the tires that can compact snow so it is like concrete.
Home owners with big SUV's who drive through the snow before it is cleared also pack down the snow, not the tractor.
Older tractors, such as my 1965 Nuffield 465, have limited choices for gear selection in reverse. For the Nuffield, I managed to buy and install a special low reverse gear. Without it the tractor, when it had a conventional rear mounted back up style snow blower, would back up faster than the blower would get rid of the snow. I would drag one rear brake to try and slow it down.
With the inverted snow blower on the Nuffield I now had a wide range of gears and could easily match the speed to the power to blow the depth of snow I faced. Being old with a bad neck it was great to not have to be turning around as I blew the snow from long lanes.
The rear blade lifted and lowered by hydraulic cylinders is a big improvement from the blades that hang on chains. I can put a large percentage of the blower's weight on the cutting edge of the rear blade using the cylinders. This down pressure helps a lot in scraping off tire tracks from SUV's.
With the inverted blower, if you are close to a home where there is a roof overhang and you dont want to blast off the soffit, I can either disengage the pto or just slow down the revs and use the blower like a big box blade until I am clear of the soffit and then resume high revs and blowing.
I made the rear blade out of 1/2" plate with a 1/2" angle stiffener so it can take a lot of pulling and pushing. My tractor shed is one I drive into and big drifts form behind the tractor. I use the rear blade on the blower like a snow plow to make a path for me to get out of the shed.
Plse ask more questions if I have not provided all the requested info.
Dave
M7040