I've sprung another leak, this time the transmission output seal. How lucky. Anyway I'm having a hard time sourcing the seal locally, and like the spider joints I'm wondering if it's a part number from another car.

I have a seal in hand that I purchased for the t-case, it's a R-ETC 4939 but that doesn't seem to match any google searches. Anyone know?

 

EDIT: Found it, Napa part number 15737 for a 1995 Volvo 940. Uses the same ZF transmission.