Ok there was a dealer update to the pcm of the 96 the tag shows it was done on may 17 2000 but there are 2 stickers showing updates one shows 05003978ab as a part number and c1521 as a dealer code which i think is a tcm update ? I found a file called chrysler_pcm_flash_availability.pdf which shows this to be just that specfically refering to TSB's 21-02-98 and 21-05-96 . Will the TCM work as is ? Am i correct that the wiring on the TRS is just pin for pin ?valiant67 said:It is very unlikely the 1999 TCM will be compatible with the electronics in the 1996 van. You can try it, but the best bet is a properly updated 1996 TCM.