I was bored this morning, and out of parts to install, so I decided to shorten the OEM antenna. I performed this mod on my 07 GT several years ago and forgot how this simple task improves the overall look of the car.

Instructions for modifying the OEM antenna are as followed:

1) Unscrew the antenna from the base with a 10mm wrench- or crescent wrench.

2) Measure 17" from the base of the antenna and apply masking tape to mark the cutting location. NOTE: the OEM antenna is 32" long. This mod will reduce its size by 47%, or nearly half...

3) Place the antenna in a bench vice, or secure it firmly, and cut at the 17" mark with a hacksaw, Dremel, etc. (the tape used for marking will help prevent marring during the cutting process). NOTE: I chose this length as I wanted the tip to be level with the roof line. To determine this height I placed one end of a 4' level on the roof and the other end against the antenna. The level mark was actually at 16 3/4", so I rounded up to 17". With the slope of the roof, the height looks perfect.

4) Take the cut-off piece and pry off the brass ball tip. Again, I tighten the antenna in a vice and slipped a crescent wrench over the antenna and tighten at the base of the “ball”. Hit the wrench with a hammer to dislodge the ball. NOTE: use some tape to stabilized the ball as it will fly off the antenna and may be difficult to locate.

5) Take the “modified ” antenna and file a slight angle at the cut-off end. NOTE: filing is required so that the ball will slide onto the modified piece.

6) Once the end is tapered, place a drop of glue into the ball and tap it onto the modified antenna. Once again, a vice is useful.

7) Sand any rough edges or marring with a fine sanding sponge and spray paint the sanded area. NOTE: Dupli-Color Bumper Coating (FB105 Flex Blk. Bumper) is a perfect match. Also, this paint matches other matted black surfaces on the car.

Conclusion: It took longer to post this thread than to perform this antenna modification. It is a very easy 15 minute “free” mod that improves the profile of the car without adversely affecting radio reception. NOTE: I live near the city. It is possible that the reception may be weaken outside of metropolitan areas.

 

Nice. How is the reception? I have shorty but this would be a good solution because the shorties tend to vibrate in the wind (at least mine does) and the stock antenna does not.

 

I did the same to mine about 4 years ago and haven't had any problems with reception.

 

Or you could have just posted a link to this article and saved yourself all the time of typing it up

This was my first mod and cutting it 18 inched (which is about the roof line) had zero impact to reception.

 

I just did mine last night. Piece of cake! I went 14". Car looks like it's doing 150MPH sitting still now! LOL!!!

10-15 minutes tops to do this. It took me longer to take out and put up my tools than to actually perform the mod.

Much better than that stocker whip!

 

Thanks. Reception seems to be the same. No Noticeable difference...

Nice.

Should have posted on TMS...

Agreed. Very easy mod... Slow down!

 

I cut mine to 14 1/2 inches and it killed my reception. I replaced it with a shorty antenna of American Muscle and it made a world of difference.

 

In theory the length of the antenna is supposed to be a fraction of the wave length which the antenna is going to receive. So if you cut it you should reduce it by an even fraction. You see what looks like a wire running up the antenna? That makes the effective length longer and usually there is significantly more wire wrapped in at the bottom so calculating where exactly to cut the antenna is not so easy. Practically reports say it doesn't much matter with some guys taking the antenna off altogether and getting sufficient reception.

 

I would caution anyone who typically listens to AM radio. This mod as mentioned will probably have no noticable effect on FM reception. AM frequencies are much lower (longer wavelength) and need the longer antenna.

 

I see short antenna's and it reminds me of the troubles I used to have with my power antenna freezing in the winter on my old 84 Supra. . I was constantly repairing the crossed cable in the motor drive..