Actually you'll be fine. I use a Class III/IV located on the front bumper to plow with. The plow adapter goes directly into that and then the lights and push frame attach to the adapter. Blade is easily 2+ ft. away from bumper. I've literally pushed tons of snow with "Silver" and that Class III/IV draw style hitch has never failed.
One needs to only bring up the spec's for a Class III hitch to see that it is rated to 5000.
Class IV rated to 10000.
"Silver" is more then capable of towing 3500lbs. I use my girl in the real world every day to tow thousands of pounds of expensive equipment loaded into a open bed trailer. Has yet to fly into a fiery crash... Lol!
A trailer hitch typically bolts to the chassis of the vehicle. In North America there are a few common classes: I, II, III, IV, and V that are defined by the SAE.
Class I —up to 2,000 pounds (910 kg) — light loads
Class II —up to 3,500 pounds (1,600 kg) — light loads
Class III —up to 5,000 pounds (2,300 kg) — larger loads (campers, boats, etc.)
Class IV —up to 10,000 pounds (4,500 kg) — larger loads (campers, boats, etc.)
Receiver-type hitches are typically offered with a square receiver opening of 1.25 inches (32 mm) (for Class I/II) or 2 inches (51 mm) (for Class III/IV/V). Some Class IV/V hitches are available in 2.5 inches (64 mm) opening sizes.
The trailer tongue (North America) or coupling (outside North America) slips over a tow-ball. Tow-balls come in various sizes depending on the load they carry and the country of operation:
* 1+7⁄8 in (47.6 mm)
* 50 millimetres (1.97 in) (ISO standard)
* 2 inches (50.8 mm)
* 2+5⁄16 in (58.7 mm)