My inquiring mind got the best of me the other day while changing a flat. It appears that my 85 SD has a locking diff in it, as one rear wheel did not turn while on the jack. Is this true? If so, that's awesome!!! Did all come that way?

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Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi