FRORF has a spacer kit that uses the IFS hub, spacer behind the disk mounting surface, then the IFS rotor to the inside. A little pricey. So Sky Mfg. copied the kit and sells it cheaper here. Cleanest, strongest option IMHO.

Another option, about $120, is Performance Wheel adapters, that use the stock lugs and have a new set of 12x15 lugs pressed in.

Another option is AllPro, selling spacers (as opposed to adapters) that use longer, but non-metric lugs.

Another option is misc. 1/4" + spacers using stock lugs. Won't match your rear axle but cheap.

-Bill
'87 4Runner w/ '96 5VZ-FE, 'Red Chili II'
'97 Taco XtraCab 3RZ-FE, 'BlackBean'
TLCA # 13257, Rising Sun 4x4 Club Land Use Coordinator
"He who stops being better stops being good." -Oliver Cromwell