Greg; I'm going to tag along on your post , because the up-grade to a newer mini van is in my future.
Did you transfer the lube pump your self ? Any problem adapting, the pump, to the 6 spd trans ?
I'd looked and the Remco kit, for the 6 spd. had a different part number, than the one for the old 4 spd.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.