7 1/4
This is the vent ( looking at it from above) vent is facing the rear of the vehicle on drivers side it's the cap on the right
The hole is there for the "T" retainer BOLT unlike the vented bolt of the 8 3/4
This is the vent ( looking at it from above) vent is facing the rear of the vehicle on drivers side it's the cap on the right
The hole is there for the "T" retainer BOLT unlike the vented bolt of the 8 3/4