stock wheel

Getting ready to buy 285/70/17 for my stock tremor wheels. What level kit do I need and what size spacers? Thanks

Long time lurker, first post. Just managed to squeeze some 265/70R18 KO2s on my truck with only a 2.5" leveling kit. I scoured for days to see if this would work without adjusting crash bars and couldn't find an answer as everyone seems to use 17" wheels. I took the chance on them and gave it...