kountry_boi

I have a 1993 toyota ex cab with a 4" tuff country lift.
I would like to buy a seller's weld mountain crusher 15x10 rims. He doesn't know if it's a 3.6 (22 m/m offset) or 4.6 (44 m/m offset) backspacing.
Do any of you have this set-up with the 4.6 backspacing rims?
Lift kit said not to use rims exceeding 3.75 backspacing, but my stock rims fit perfectly also I think 4.5 backing 0 offset.
Also, I know the 3.6 backing will fit because I currently have a 15x12 weld typhoons on truck.

Thanks