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Does anyone know the specific spark plug number (Champion)for the 1977 440-3? Also the '77 M-600 chassis uses a Hydro-boost system for the p/s and power brakes...fluid no longer available. Been told use ATF by some and regular Power steering fluidby others claiming to know. Any thoughts...manual says do not use regular P/S fluid!
Does anyone know the specific spark plug number (Champion)for the 1977 440-3? Also the '77 M-600 chassis uses a Hydro-boost system for the p/s and power brakes...fluid no longer available. Been told use ATF by some and regular Power steering fluidby others claiming to know. Any thoughts...manual says do not use regular P/S fluid!
Original plug was RBL9Y. You will have to find out what current plug is. I believe RBL9Y is obsolete.
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