Overdrive tranny in an A-body

jbc426 said
I can't seem to find a 518 rated for 1000+ hp for sale anywhere. They seem to max out at just over 500hp because the overdrive unit on the back of the 518 is the weak link (part of the reason it's less efficient, heavier and takes more power to spin than a 2004R), but please post a link showing 1000+ hp rated 518's for sale.
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I doubt someone will be selling one ready to go. You'll have to build your own. You have to remember that the diesel guys are using a version of this trans (618) I believe. The OD unit bolts up to the A500 or A518. The guy I got my trans from had it rebuilt and they put the 618 od unit on it.