That seems really unlikely. Call them and get the part number.
When I was installing the kit, I wrote down all the numbers of everything as I unpacked. All the bearings, the inner shaft seal etc were common Dana 60 numbers, but those seals were non descript, in a clear bag, and the OD was quite small due to the hub compromise for the ABS, which a traditional D60 never had. I didnt have a chance to measure because I had to get the job done. Spyns website shows a parts diagram but no reference numbers. You're reliant on the dealer for help.