First of all I''d like to thank all who posted,,, a wealth of good information that has saved me money and preventing me form doing harm to my 87 300 SDL.
That said I would like to know if there are any tips or cautions that I may run into next weekend.
replace headlight switch,, low beams do not have 12 V,, fuse ok right beam sometimes work and then not,, high beams ok dash lite for ng light ok.
Ignition switch,, contacts getting funky,,
Thermostat Eng. temp. never gets above 60 C,, unless it's 100 F outside and driving up hill .
Thank you in advance,, Cheers
ps I have the parts, but not sure if they are OEM.

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