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      05-09-2025, 11:58 AM   #10
sperkins
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Drives: 08 E92 M3 MT
Join Date: May 2021
Location: Northern CA

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Quote:
Originally Posted by omgzirra_exe View Post
did you read their installation guide? lol it literally says this

“Note: Due to strength and vibration concerns, most tow hooks will only thread in a 1/2 turn by hand. If your hook fits like this, make sure it’s threading straight and not cross-threaded, then use a 19 mm socket to slowly turn the screw in. It should go in smoothly with consistent effort until it bottoms out. After the initial install tools won’t be needed. This is intentional—when you compare the threads of your Rennline tow hook to the factory hook, you’ll see a big difference in thread profiles. That’s a key part of the design.”
I did indeed. The issue is that it is completely bottomed out after the 1/2 turn (on the rear specifically). Torquing it with the 19 doesn’t give the result the instructions imply.
You can sink it in pretty good on the front though.

I went after these because of the all steel construction. The quality met my expectations. Their mounting system is flawed. I spoke to the technician at Rennline, and he agreed the threads are too short. He’s sending out some longer studs
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