yes,,you can do this with minimal tools..it just takes time and flexible hands...but,you need to load test the charging system to make sure of the problem..a load test will determine if it is in fact the alternator....i would think it is...these instructions may help you
Chrysler Caravan/Voyager/Town and Country 1996-1999
Voltage Drop Test
See Figure 1
These tests will show the amount of voltage drop across the alternator output wire from the alternator output (B+) terminal to the battery positive post. They will also show the amount of voltage drop from the ground (-) terminal on the alternator.
A voltmeter with a 0-18 volt DC scale should be used for these tests. By repositioning the voltmeter test leads, the point of high resistance (voltage drop) can easily be found. Test points on the alternator can be reached by removing the windshield wiper/motor module assembly. Before starting the test, make sure the battery is in good condition and is fully charged. Check the conditions of the battery cables.
Output Voltage Test
WARNING This load test must be performed within 15 seconds to prevent damage to the test equipment!
On certain brands of test equipment, this load will be applied automatically. Be sure to read the operating manual supplied with the test equipment before performing the test.
.3L and 3.8L Engines
See Figures 8, 9 and 10
FIG : Fig. 8: Alternator mounting bracket
FIG : Fig. 10: Alternator removal-3.3L and 3.8L engines
yes..even simple jobs on todays cars are hard....please click the accept button if you were satisfied with the answer