R151 (turbo) bell housing plug
R151 (turbo) bell housing plug
from $18.24
I'm not sure either
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R151 turbo transmission bell housing rubber plug
This is what should be covering the gaping hole on your 5 speed (or automatic) bell housing. It's only used on the turbo trucks. The purpose of the hole in the bottom of the bell housing? It's a secret........ actually, I don't know for sure.
Keep dirt and water away from your clutch assembly. Install it if you don't have one.
Fits 1986-1988 turbo trucks only.