The rubber has shrunk with age.
Gregg Groff
There's no place like 127.0.0.1
1968 Chevy G20 108 panel Now with 454 power!
1965 Chevy G10 panel- OHC Pontiac inline 6
That's not all that shrinks
LARRY OF THE PACIFIC NW
1965, 292, TH350
purchased Nov. 22, 1970
You may start to experience problems with leakage too.
Dribble dribble
LARRY OF THE PACIFIC NW
1965, 292, TH350
purchased Nov. 22, 1970
Cheap fix. back silicone fill it in good ten or permanent fix
1969 GE "90" Panel TH 350