Yes. I concur with you....the little C-clip.

I have tried to find the part number via normal sources:
oemmitsubishiparts.com
mitsubishipartswarehouse.com
rockauto.com

Parts store may have better luck


1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya