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Posted by: falcor75 Jul 16 2014, 03:09 AM

Both my sill covers have small crack from the underside and about an inch upwards about 10-12 inches in from the rear end, since both mine are cracked in the exakt same place I'm wondering if this is a common issue?

I'm going to drill a hole at the end of the crack and then weld them back up. Will probably weld up the jack holes to achieve a smooth look on the sill covers while I'm at it.

Posted by: GeorgeRud Jul 16 2014, 06:39 AM

Carefully check your longitudinals under the rocker panels to be sure they're not rusting.

Posted by: falcor75 Jul 16 2014, 10:33 AM

They are very solid (I have the hole car to pieces for restoration)

Posted by: SirAndy Jul 16 2014, 11:20 AM

Can you post a picture? I don't recall ever seeing a crack there ...

Posted by: falcor75 Jul 16 2014, 11:54 AM

http://matsgarage.com/wp-content/uploads/2014/07/DSC00800.jpg

http://matsgarage.com/wp-content/uploads/2014/07/DSC00801.jpg

http://matsgarage.com/wp-content/uploads/2014/07/DSC00802.jpg

Posted by: SirAndy Jul 16 2014, 12:32 PM

Aha, yes, i have seen this before.

I would mount them first, make sure they align right with the rear of the fender and then weld them up. Shouldn't be a problem.

Posted by: 914Sixer Jul 16 2014, 08:18 PM

Standard vibrational cracking of rocker panels. They crack where the long ends.

Posted by: SirAndy Jul 16 2014, 08:47 PM

Might be a sign that you're missing the metal tabs inside your fender that are supposed to keep the lower portion of the rear fender from vibrating.