http://forum.studebakerdriversclub.com/showthread.php?51899-All-Studes-with-ALE-5003-Alternators All Studes with ALE-5003 Alternators Long NLA the Prestolite Voltage Regulator can be easily replaced with a truck heavy duty variant. Equipment Solutions at 619-326-6191 has the following Voltage Regulator 80-213 which is a four wire direct replacement for the VBV-6221-A, C. The wait is over.:-) Cost is 48.00.