64-67 Steering Column SEAL: 64-67 GM A body but the 108 seems to

but the 108 seems to be the one most commonly found

this is a good one for vacuum reserve & size

500 Color Black Gold End 1 Fitting Type Female End 2 Fitting Type Female Mounting Hardware Included No Outer Sleeve Material Rubber

just for AC original cars as shown

so if you check the AC DELCO makings on your (given that yours is original still) you will see the points are 9 am & 3pm

64-67 Steering Column SEAL: 64-67 GM A body but the 108 seems toSeals the flange plate at the interior of the steering column where it attaches to the firewall and helps prevent fume draft . Cutlass, Skylark GS GTO LeMans Tempest El Camino & Chevelle