1999 Lincoln Navigator

What is the outside diameter to re-thread the head for a spark plug?

1978 Ford F-150

changed out the transmission with a used one it was working fine instulled it now it shift out of park. ford f100 351m motor and… Read More »1978 Ford F-150

1990 GMC Sierra

We recently had a problem with our truck not starting.  We replaced the battery, battery cable, iginition switch, starter, and the ignition key switch.  With… Read More »1990 GMC Sierra