By “not cranking” do you mean starter doesn’t turn the engine?
(Or does the engine turn and fail to fire up?)
If the starter does turn the engine, clean and tighten both battery clamps.
If engine fails to fire, check to see if you have spark.
There are a few causes of no spark: bad coil, bad igniter, bad main relay*, possibly a blown fuse. Coil and igniter are in the distributor, main relay is under the dash board near front door hinge (which side depends on model year)
*I cannot remember if main relay controls the ignition power and fuel pump power.
Take care,
ChrisS