Rusted MSD

I first installed an MSD dizzy in my 340 in 2003. Mine got corroded up like that after 8 or 10 years. I had another on the shelf and installed it and was on my way. This winter I checked it and it also corroded up (after another 8 years). Both distributors worked great until they didn't. I called MSD tech support and they acknowledged that this had been a problem and that the new distributors had a coating on the reluctor and bare metal pickup surfaces to resolve this. I sent them both distributors and for a bit less than $130 a pop they did a complete rebuild with all new internals, electronics, bearings and the new coated parts and even a fresh cap and rotor. It'll go back in in a couple weeks - hope this solves it for good.