[AROWHED]

This rotor might work, it has a 5 x 127 [5.000"] lug pattern, and the 10mm [.393"] lug bolt holes can be easily drilled to 1/2" or more. The outer diameter is good, it's nearly an inch thick across the vented friction surfaces, and the drum hub might even fit inside it without machining; for that need a hat inside diameter of 6.40" min, that dimension is not shown.

But the 70mm height is about a .250" short, which will cause the caliper piston to be slightly out of its hole even with new pads, as opposed to fully seated with a correct height rotor, which needs to be around 2.90".

Finally the 101.6mm [4.000"] register is way too big, but the lug pattern can act to keep the rotor centered.

This site doesn't list applications, but I think this a front rotor for a GM 4WD truck, not sure year range.

https://brakeperformance.com/images/.../brake-rotors/

[hgerhardt]

Using the hub to center the rotor is the best way, since in the future you might get rotors with that inner hat diameter different than what these are.

Since you state there's a 0.100" hub diameter difference (3.050 vs 3.150), you could get a pair of stainless spacers made which are 0.050 thick. Make them a slight interference fit on the hub and a slip fit in the rotor. Obviously only as wide as the rotor hat thickness, so that they don't interfere with the wheel hub hole.