Offset advice on '15 Tacoma

Just picked up a set of 285/70/R17 Duratrac's for my '15 Taco TRD. Stock TRD wheels are 17x8.5 w/ 2mm offset. I'm looking at some wheels 17x8 w/ 12mm offset. I already have a 3"F-1"R lift installed.

By my quick calculations, the old wheel should be around 4.8" backspace and the new at 5". Not a huge difference, except for the 20mm beefier tire.

Am I looking at any rubbing clearance issues with the UCA? I could also find a wheel with negative offset, or pick up 1/2 in spacers. But I just really like these wheels.

Sorry if this is in another forum, I attempted to find the info in other forums but couldn't.

 

You need 4.5in back spacing or it will rub with the 285's and minor trimming most likely and front mud flaps will need to be removed every setup is different you won't know till they are on.