I got this unit in a lot of parts from an estate sale. It appears to be an ABS unit and controller from a C4 Corvette. Obviously I don't know if it works, but I would imagine it would.
Anyone need it for a project? Not sure a good price, but if you're interested I'm sure we could make a deal.
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Those bosch relays are difficult to source and expensive.
If they don't work you can build a "wiring extension/adaptor" similar in theory to a radio adaptor to use a modern relay with similar load ratings.
Cool unit, allegedly gave the corvettes an edge over the 944's on track.
In reply to daytonaer :
Thanks for the info! I think I'm going to try and post it on eBay soon if nobody on here is interested.