well i just put on a old nst pulley that doesnt have the ingraved lettering but i also bought a belt that u guys said it would work "K070890" gates and it was to small. i have an 08 and i know we have less pulleys then the 06 is this the problem? if so what belt size do i need.

 

thats the belt for the supercharger pulley...are you supercharged? What kinda pulley did you put on, Underdriven crank pulley, CR lite pulley, or a boost pulley for the blower?

 

i put on a 9.5 psi pulley for the blower and yeah im supercharged

 

well thats definitely the right size belt...your gonna hafta make it fit, its definitely tight but it works

 

i just talk to scion and the belt size is different.

 

the dealer isnt gonna know what size belt to use with the 9.5psi pulley. You are putting a smaller pulley on than what was there stock, so therefore you need a smaller belt to keep it from slipping. Thats what the K070890 is for, check NST's website, its the exact size listed for their 9.5psi pulley