Tow hooks
Le Mans Master
Joined: Apr 2005
Posts: 6,277
Likes: 72
From: Boston's south shore MA
No, my tow hook screws in perfectly. Not something I'm leaving screwed in. Under the carpet in my trunk is the indentation for the tow hook, so I keep it there.
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 854
From: Daytona Beach FL
The forum wisdom is that all C7 Z06's have been built with the threaded receiver in place.
If you got the OEM hook it should screw in.
There is a nice aftermarket hook by forum vendor ZL1 Add-ons that also has the proper thread size:
http://www.zl1addons.com/index.php/s...ow-hook-detail
If you got some other aftermarket hook that doesn't have the M20x2.5 threads, then it won't screw in there. Many aftermarket hooks may have threads, but they are usually MUCH smaller than what is required, and they will go into the receiver and seem like the receiver isn't even there.
Or, it could be that you have a Z06 that didn't get the threaded receiver installed as it came down the assembly line like apparently all others did.
.
Le Mans Master
Joined: Sep 2003
Posts: 8,934
Likes: 657
From: Norwalk ohio
2019 Corvette of the Year Winner
St. Jude Donor '15
Racer
Joined: Oct 2004
Posts: 432
Likes: 49
From: Southern Maryland
I had a burr at the threaded opening that prevented me from screwing the tow hook in. I borrowed a M20x2.5 tap and carefully started the tap, which removed the burr. Problem solved, tow hook screws in as it should. Double check and see that you don't have something that prevents you from engaging the first few threads of your tow hook.
Melting Slicks
Joined: Aug 1999
Posts: 3,422
Likes: 9
From: Rockaway, NJ
As long as it is a Z06 there should be threads there. Non Z06's do not have threads or receptacle for tow hooks that I am aware of.
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Thread Starter
Racer
Joined: Mar 2006
Posts: 271
Likes: 3
From: Austin Texas
So there are no threads in the front. The rear threaded hole is smaller than the tow hook I bought from ZL1 addons. Don't get me wrong these tow hooks are great. This is a GM thing. Suggestions?? I plan to call the dealer tomorrow
Le Mans Master
Joined: Sep 2003
Posts: 8,934
Likes: 657
From: Norwalk ohio
2019 Corvette of the Year Winner
St. Jude Donor '15
I would check the diameter of the hole and it might be as easy as running a tap in if you can do it straight......cut your own threads....or maybe the diameter isn't correct as the entire machining process was left out.
Not sure how that is attached, but I have to believe that it is buried into the structure in some form or fashion......share what you find out !
Not sure how that is attached, but I have to believe that it is buried into the structure in some form or fashion......share what you find out !
Supporting Vendor
Joined: May 2013
Posts: 387
Likes: 32
From: San Diego Ca
I shipped one tow hook for the front or rear that did not have the threads chased. If anyone has it just call me and I will send replacement right away. The threads are all undersized about .015. One I shipped that did not have the chrome chased off.