GM Truck Hydro-Boost Sealkit ?

[82Diesel]

I have an 82 K10 Diesel, It was Converted to Gas (SBC 305) But original Diesel had a hydro-boost! I've been converting it back over to diesel so I bought a 3/4 Ton Diesel truck that's the same year, engine besides being 2wd...

Anyhow, I think the one from my parts truck was leaking right behind the master So I was just gonna buy a brand new one unless I can get a Seal kit or rebuild kit for it Is that even possible for the Older 73-87 Hydro-Boosts, Do they have any part numbers on them or anything like that?? Thanks