Sorry my bad!
I know chevy 6 lug 80's and some 90's model k5 and suburbans rims fit (6x5.5) and the back spacing matches without any steering parts being rubbed. will the rim/hub dia. from the sierra be big enough to match the toyota?
thank you!

No GM rims wont fit a Toyota. Different manufacturers use wheel specs.

the bolt pattern is slightly different but if you egg out the bolts holes it will work i have done this in a pinch