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View Full Version : Stretching Mounts on Frame and FFR Parts



hrosenthal
09-24-2012, 10:17 AM
I'm sure I'm not the first person to figure this out, but I didn't see anything posted about it, so I hope this helps anyone having the same problem.

Just about all the mounts on my powder coated complete kit seem to be a bit too tight for the correct fit with the corresponding parts. I attribute this to the powder coating throwing off the precision craftsmanship of the FFR parts.

I am using the FFR assembly manual to guide me through my build, but also referring to "How to Build Cobra Kit Cars" by D. Brian Smith.

The FFR assembly manual never mentions parts that don't fit right, but Brian Smith's suggests increasing the size of mounts and filing spacers when things don't fit right. That said, it seems to me that Brian Smith takes a brute force approach to making these adjustments and I just don't like the idea of taking a crowbar or monkey wrench to my shiny powder coated frame and parts.

After unsuccessfully searching for a suitable tool to do the job, I figured out a quick, easy, and cheap way to handle the problem.

Here is a pictorial using the rear upper control arm and knuckle of my IRS.

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Jesper Ingerslev
09-24-2012, 11:55 AM
Hrosenthal,
While we do try to make all of the frame mounts fit perfectly, the welding process does make parts pull so spreading the mounting plates slightly may be necessary. Using a piece of wood should prevent any powdercoat removal.

kiki231
09-24-2012, 12:04 PM
Great idea, and also good for an amateur like me to hear FFR chime in a reponse

acth4347
09-24-2012, 05:35 PM
What a simple yet elegant idea. I am having a similar problem with the rear LCA mount on my 3 link. Now I have a simple fix. This forum is such a great place to share ideas. Thanks

skullandbones
09-24-2012, 07:30 PM
hrosenthal,

I have done that sort of process on other projects not exactly automotive based but I really like the way you presented it. Good job! Clear and to the point. Thanks, WEK.