Long bolt when removing alternator in 92 F150
I am replacing the alternator in my 1992 Ford F150 with an in-line 6, 4.9L engine. I have been able to unplug all the cables/wires and remove one bolt. However, there is a bolt on the bottom that is very long. I am able to remove about 90% of the bolt but then it hits the filter that lies right against the inside of the grill and I am unable to remove the rest of the bolt. Is there any way to remove this bolt without also removing the filter?