Hey DV!!! You around? or still out digging a tunnel to the shop
I think I remember during one of our chats. That you stated that after you cut out and reshaped the body area behind the seats, that there would be plenty of room for a much wider rear tire.
What size do you think would fit, without causing interference to the body or rear suspension?
Maybe.... P 315 / 60R15
Cheers!