i had the guy boring them look at them and he was very honest....He said "they are built to hold up a near 6,500 lb suv or 5,000 lb truck. You are putting them on a 3,200 lb truck ..i dont really see a problem." "And a nissan rim is bored out like that from the factory and have no strenght bends or curves..these have 3 (he holds up three fingers) the one where the factory gm hub would be, one where the rim bends in to the hub mounting surface, and 3 (he hold up 3 fingers again then points to my rims) the one that is where the rims starts outside of the hub mounting surface.

but i do agree and will def. plate the front.. thanks for the input...