re: 74 GTV Racing Harness Install

[Dana Loomis <dloomis@domain.elided>]

In alfa-digest V8 #1176 Kelly McCrystle wrote: 

>I would like to install a racing harness in my 74 GTV
>for an upcomming track event.  
>
>This past weekend I noticed two different mounting
>styles:
>
>(1) Eyebolts installed right below the rear package,
>rear seat removed
>
>(2) Bar bolted in behind the seats spanning between
>the B Pillars, belts installed onto the bar. Rear seat

Ideally, you want the shoulder belts to be close to horizontal from your
shoulders to their mounting point.  Either of these setups could work, but
I'd be very careful about verifying that the mounts were strong enough.
For #1, yes, it's essential to use backing plates, because the sheet metal
bulkhead behind the rear seat is thin.  For #2 to work, the bar has to be
thick enough not to deform under load.  This kind of device could be hard
to build, because the pillars are narrow and there isn't much to mount to.  

A third option is to anchor the shoulder belts to the factory hard points
under the rear seat, then run them up and over a guide bar mounted as
described in #2 and finally to the driver's seat.  In this configuration,
the guide bar only locates the belts, rather than anchoring them, so it can
be fairly light weight.  

Dana Loomis

>Does anyone know where I can find one of these bars
>that is pre-fabricated or are they a custom build?
>
>
>If I choose to install eyebolts, do I need to use
>backing plates?
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