Quote:

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Mopar never made a steel 8.75" case, nor steel caps.

I stock a couple different 489 cases with FORGED STEEL caps.

http://www.doctordiff.com/8-3-4-nodular-iron-casting.html

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This subject, Mopar making a "better" 8 3/4 center section for drag racing, came up in one the old Mopar sponsored Drag Seminars, Mr Hoover said there was no need as the stock 8 3/4 cases where all cast steel Maybe I heard him wrong, that was when the Ford 9 inch was coming into being popular with thier nodular iron center section being the trick hot set up of the week in some of the car magazine back then Now,if I can remember how to test cast grey iron compared to cast steel with a hammer and chisel or a hacksaw, I'll let everyone on here know what I find out