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On the inside of the fuse box covers is a diagram of the fuse box with the fuse locations and sizes.
If the fuse won't fit then you have the wrong size fuse. They make several different sizes and amps.
1971 couger has it fuse box under the dash on the drivers side and the are glass fuse you can remove them with a small pair of pliers but be careful the fuse does break and get glass in your face
What size fusea are in the 1971 G.M.C. truck
O'Hara U-S- Treasury - 1971 Operation Time Fuse 1-5 was released on: USA: 15 October 1971
Look in the fuse box; there may be different sizes depending on what it serves or protects.
The fuse panel in my 1971 is in the glove box behind a panel on the right side.
There are various sizes and ratings used. Replace with what you take out.
It is a device that carried various sizes of fuse to supply power to different areas of the building respectively.
Pull out the bad fuse. Take the fuse with you to your local parts store and compare the fuse in your hand with the ones available for sale. Make sure to check size, not just amperage. There are 2 different sizes of 20 amp fuse out there. A 1999 takes the smaller fuses.
It is not the fuse that is numbered 43 it is the socket number that the fuse sets in. It should also say what amperage the fuse is. The numbers on the tops of the fuses are the amp sizes. Is there a layout on the back side of the fuse cover? If so then find the fuse and replace or check it. Hope this helps.
No there are many types and sizes of fuses - you should use the correct size fuse whatever you are doing.