I have a pair of 480/80 R46 tires for sale $150 each, these are take off tires. They are not perfect, they will make decent duals.
they have a few of the normal Good Year side wall cracks. You can boot them or put a tube in them.
they have about 30 - 40% thread left. If you have a bad tire and want to match one up, this may work and save money.
These tires have been in the shed since new, no weather rot.
call me with questions 712 two six zero 2510