(quoted from post at 05:10:19 05/06/20)
To clean the air filter the manual says to use a cleaning solvent, what kind? And where can I find a instrument panel light? And any words of advice on replacing the transmission filter.
The mesh is steel wool and the housing is steel also, so you could use just about anything except acid. Most folks use kerosene or gasoline. Just make sure it's done in a well ventilated area with no risks of spark around. Soak it for a few hours at least, agitate/swish it around a few times during that period, and then let it drip & air dry. Or, if you have a parts cleaner you could use that with whatever grease cutting solvent you normally use in there.
We're not allowed to post links to competing sites here, but if you Google "Dennis Carpenter Ford Tractor Parts" you'll find a site that sells replacement instrument panel light assemblies for both 6 and 12 volt systems.
As Larry already said, don't attempt opening up the transmission to replace the filter unless you have the proper Service Manual and have read it thtough at least several times and become familiar with the procedure. That filter has a bypass so if it is clogged, which it probably is, it probably hasn't been in use for quite some time, and changing the fluid often and cleaning the inlet screen every time that you change the fluid should be all that is needed.