I'm getting new rims and tires for my '99. I currently have the stock 245/70R16 on stock rims. I'd like to move up to a 17" w/ Guard Dog 265/75R17 or 255/75R17. The 265's come in 10ply and the 255's in 6...is there any benefit to the heavier ply for average use? I haven't lifted the truck yet but if I did my math and research right I hope I have the clearance with a 17"x8 rim w/ 4.5 backspace and 0 offset.

Any input is appreciated! Have a great day!