The guys at truck center in Pataskala said the part number didn't exist. Funny though, I scored a genuine Allison #29537965 on ebay for a whopping $17.
That is because the 29537965 is the old part number. Allison redesigned the internal filter and the 29542833 is the new part number. Be warned that the new part number will not work in a 5 speed transmission which is why the dealer asked for the vin number on the truck.
We sell the new design filters and the old design filters for the 5 speed shallow pan. We also sell deep pan filters. We sell the genuine Allison filters and Filtran filters. Filtran makes the filters for Allison by the way.