A cylinder has no straight edges
yes you do have to remove lock cylinder:first turn it to the off position and then under column is a hole.Take a pick or coathanger ,bend it straight to go inside hole and press against cylinder release button and pull cylinder out
You will have to destroy the old one to remove, possible by drilling straight through it.
I have changed an ignition in one. I used a pneumatic cut-off wheel to cut straight slots in the blank faces of the two bolts that retain the lock cylinder. Then, I used an impact screwdriver to remove the bolts. when you get the new ignition lock cylinder, you can use a large flat screwdriver to re-install the bolts.
Well I'm not sure about all models but in my 72 XR7 with a standard column I had to pull the steering wheel then if you look you can see where the ignition lock cylinder comes through the column. If you follow the cylinder to the end and look twards the bottom of the housing you will see a small hole. Put the key in the ignition and turn it to the run position. Push a paper clip or as I used a piece of coat hanger and pull the cylinder straight out.
The 1975 Ford F150 4.9 L ( 300 cubic inch ) straight 6 has electronic ignition , it doesn't have points
No a cylinder does not have any edges because it is straight!
www.motorcraft.com shows the ignition timing setting , for a 1988 F-150 4.9 L ( 300 cubic inch ) straight 6 cylinder engine as 10 degrees BTDC
# 1 cylinder is the front cylinder on a Ford straight 6 cylinder engine
A sphere and a cylinder can roll straight.
# 1 cylinder on your 300 cubic inch ( 4.9 L ) straight 6 is the FRONT CYLINDER
cylinder # 1 is the front cylinder on your straight 6