Steel modulars fitted with 265/75x16's will fit without any modifcations or spacers, at worst you will need to adjust the lock stops but that is a simple 2-minute operation.
"If drums on the back i meant no. Not with out spacers. I have large steels on mine and just waiting on spacers."
If you are having problems then I can't imagine what they are as steel modulars are a direct fit to Series & 90/110 vehicles whatever the type of brakes. Sounds to me like you are trying to fit some kind of centre hub cap and are not aware that lock-stops can be adjusted.