Exhaust pipe to gimbal housing

[LVANGEE]

Does anybody out there know the part #s to the exhaust y pipe to gimbal housing . Two smaller O-rings and a larger oval o-ring . I cannot find a catalogue listing anywhere for them . 1982 alpha one gen 1 I think . The 83 is a different listing all one piece o-ring seal .
Thanks , any help is appreciated !

 

[Don S]

Re: Exhaust pipe to gimbal housing

25-20863 for the big one, 25-23145 for the two smaller ones.
They are found on the gimbal housing parts list, not the engines Y pipe.