I’m searching for a pitman arm sealing kit for my 1956 Cadillac Coupe deVille.

I requested some well known parts sources (usa part supply, kanter) but they told me that they can offer only complete rebuilded steering boxes to me. My steering box is okay (I bought a rebuilded box in 1999) - only the pitmanarm seal is leaking now so I don’t want to purchase a rebuilded box again.

Word is, that there is no pitman arm sealing kit availalbe for 1956! Only sealing kits that were available are for the years 1957/1958. So I want to ask if someone knows if they will fit for 1956.

I can’t imagine that there is not kit availalbe for 1956 - because the guys neet to have one, if they offer me a rebuilded one.

Taken from my master part book (covering 56 to 60) I would say it’s
group no 18.0335 = Kit, Seal, pitman Shaft (Includes RetainerRing, seal and Washer)

The groupnumber ist the same for 56-60 = 18.0335

For the year 1956 it says partno: 568 3798
But for 57-60 it is a different partnumber: 568 5583

Exploded views let me assume that the kit for 1957/58 has just one part more but I don’t know if the 57/58 kit is compatible to 1956 and will fit there.

Hope anyone can help with this very specific question. Or did anyone knows a parts source that offers kits for 1956?