Starter is good and battery,but getting a clicking sound by the battery on the drives side, on a ford 1995 e350 van .

It does sound to me like you need to double check/override , battery, starter itself, possibly remove from vehicle and test, and also something to never overlook, the standard of all removable connections between the two, ie, the two main clamp terminals on battery, cleanliness of battery posts, and security of main thicker cable to starter motor and its nut.What other poster says about batteries which test 12v does not prove that the battery is in good cell condition and has enough amps/etc to actually crank the starter under load, is valid. Try a jump start, but even they often fail not because batteries/starters/alternators are at fault, but just because a huge percentage of jumper cables develop defective connections between the wires and the alligators.In fact, even many brand-new but cheapo jumper cables are useless, because they simply have too flimsy a connection from the bare wire ends, to the inside of the alligators.. all DC electricity likes rock solid circuit connections at every point, or it looks for alternative easier low-load paths, or just rolls over and goes back to sleep when you need it.

Sounds as though the coil pack is failing to supply the correct current to the starter motor to me, I do hope this helpful, please let me know how your investigation goes & of course the resolution to the problem if you find it, if I can be of any further assistance please let me know. Kind regards Jem

First, try to boot with another battery or a power pac... because even if your battery give you 12 volts..it could have died cells and you're not have enought amps..... Seond, if it's doing the same thing... check if there's not a shield ground cutted or bad on the starter or the motor that's do he ame thing... No amps... third,,if everything is ok,,it's surely the bendix