So, a sponsor on MIFbody was selling some shorty antennas, and he had test fitted one on his brother's Cobalt, and it fit great, so I figured I was game as well.

Well, I decided I wanted to test fit it before buying, so we went to go take my stock antenna off...oh boy did that open a can of worms...


First, we didn't realize it was a reverse thread, and turned it the wrong way at first...and I guess we broke the stupid cheesy welds or rivets or whatever holds the antenna base to the body...I think we probably would've had we turned it the right way, it was on there so tight...

...well, got the stock antenna out and went to put the shorty on and it DIDN'T FIT. For some reason my Antenna thread was a bit bigger than the antenna I bought (that fit on a Cobalt)...

Basically, now my antenna just wobbles around everywhere...anyone else run into this?

I'm gonna try and zip tie it to the bracket to stop if from wobbling everywhere, just wondering if someone accidentally broke this (or ran into the thread being abnormally large)....

 

u probably bought an antenna for the 05-06 cobalts 07+ is a different thread size

 

Ohhh, okay. He must've tested it on a pre'07 Cobalt, then.

Anyone happen to know the thread size? I'm gonna drill and tap it out.

 

07+ is a 7mm thread

 

Ha ha same thing happened to me. Lucky for me my car was under warranty at that time and they fixed it for me free
good luck

 

7mm x ...


Yeah...looks like I'll have to tack it or something...


...or zip tie it.

 

x part im not sure about but looking at this tap chart http://www.korit.com/tapndrill.htm the only 7mm i see is 7mm x 1.00

 

Same thing happened to me but my stock antenna was seized. I tried using a vice grip to take it off and it just broke the bracket in side.

 

Okay - so it's not just me, it's a cheesy design.

Anyone have an exact spec on the thread before I go drilling and tapping this antenna?

How did those that broke it fix it?

 

mine wasn't even tight i unscrewed mine by hand and put on my stubby antenna

 

the thread size is 7mmx1.00 i actually made my own antenna at work took about 5 mins to make it but like a month to find the tap lol its a metric tap youll need to drill it out with a 6 mm drill

 

Took it to the dealer. Costs $114.

 

It looks like the base/bracket it like $20 from GMPD...

...since the '05 uses a 6mm thread (I presume), could I potentially just buy that bracket/base and have everything line up, except the fact that it has a different thread?

Or was GM retarded and moved the bracket mounts or antenna hole...

 

i remember such a thread what almost a year ago now?

 

Yep. I think its pretty close to a year if not over year.

 

at least you did do like I did. I broke the entire stud off of mine last weekend tryin to get that god damn ark shorty off cuz the signal was ****. Well now I have no antenna at all and you can imagine what the signal is like now. You should be able to get the stuff for an 06 thou and not have to tap the new antenna. If nothin else hit up eBay for a 7mm tap. I got a 6mm tap off there last year

 

when i bought my car the dealer ran it through the car wash and it snapped off the antenna, bought a shorty the next day

 

Well, I looked up on GMPD and it said 06-08 for one antenna base and 2005 for the other...

So, I can buy a 2005 Antenna bracket (I presume that comes with the base?) and it'll fit?



#2

Does that include what I broke?

 

the same exact thing happened to me. i ended up pressing the bracket back onto the antenna, then drilling and tapping a hole in the antenna base, finally i bought a mm size screw and put it in.

 

Yea #2 is all you'll need. Get it for the 05 model and you won't need to retap the shorty antenna you have

 

Sweet, I just ziptied mine fixed, but Ill get that bracket and just install it.

Does the antenna cable just pull out of the base?

 

Yea it pulls out just like an RCA jack would

 

****...GMPD won't sell me the '05 antenna...

 

why not?

 

They said it's discontinued or something...I wouldn't think GM would discontinue something that new...