Can anyone tell me about tranny solenoids I have a 1999 Cherokee 2wd 4.0 engine tranny is an AW4 I was told I needed to replace solenoid #3 but when I called the jeep parts dept. at don drennon the parts guy said they only listed two solenoids in the tranny part#4797402 and #4797403 anyone tell me what's up I need the tcc solenoid and these guys don't seem to know what it is THANKS!