[AT] CASE IH 235 60" Blade holder?

[William Powell]

 Hello,

I've been asked to reproduce a CASE IH 235 60" blade holder. Its about 2
3/8" long, 1 7/8" wide, 1/4 thick, and has sides that are 3/4 high, I have a
mill and some steel stock and I could do it... 

But, I believe it is cast iron and I'm not sure if making it out of steel
would be safe? I don't like to alter high speed blade engineering... 

I would rather find an original replacement for this part. 

Any ideas? 

Thanks,

Will