Am i going to need to get a larger tensioner pully with the 3.0 swap? and if i dont, will there be any belt slipage? I need to know asap!!!!

https://zzperformance.com/products1.php?id=195

that is why i am asking, and also, what about spark plugs? should i get colder ones?

does no one like me or what here? Someone help me out

Am i going to need to get a larger tensioner pully with the 3.0 swap? and if i dont, will there be any belt slipage? I need to know asap!!!!

https://zzperformance.com/products1.php?id=195

that is why i am asking, and also, what about spark plugs? should i get colder ones?
Most people are saying you are ok with a 3", you need a tensioner or bigge idler with the 2. 85", same thing with plugs, it is recommended a step colder for the 2.85" pulley but you are ok with the 3". (Someone correct me if I am wrong on the plugs.)

The 3" pulley needs no mods. but you do need a special puller to remove the existing pulley. the 2.85 pulley needs a new tensioner, i found them in ebay under cobalt ss pulley. the ebay sellers name is pulleytechnologies, but his real name is gary. very helpful!!