[Alex van de Wetering]

John,

I saw your truck in Wageningen; nice work!

Speedo drive gear for the C15 is GM 603074; it's not shared with other CMP's in the range.

Have you asked Stefan at LWD for the seal? There has been some talk about these seals on the forum lately as well....they do come up for sale on Ebay, and I think they are also available from the US Chev parts suppliers.

Alex