787 gasket kit from WSM

[Black67tb]

I have a new gasket kit for my 787 engine. 1996 GTX. It came with 3 orange orings. I know two of them go around the head cover for spark plug. But I can't find any location in the manual for the 3rd. Is this just a spare?

 

[WhiskeyD]

I haven't built a 787 in a long time but I believe one of them is a different size than the other two and it goes on the crankshaft behind the PTO.

 

[etemplet]

Good memory !!

 

[Poormanracing]

Yes goes behind the pto carfull tight fit going over the threads.cut my nose picker plenty of times on the crank threads