[T3] Late Brake Light Switch Wiring Harnesses?

[Jim Adney]

VWs, at least in the US, started coming with a brake warning light on the 
dash in 1968. To implement this, VW made a special master cylinder with a 
second, parallel bore with shuttle pistons. This MC was only used in '68-9. It 
was replaced by a MUCH better design in '70.

I consider the '68-9 MCs to not be rebuildable. They are a bad design and 
most of the time I can't even get them fully apart. Frankly that design sucks, 
and VW stopped making the original design parts available early in the '70s.

To install the latest version of the Type 3 MC, there are several additional 
parts that need to be replaced. The brake light switches need to be 
upgraded from 2-pin to 3-pin; the LF hard line needs to be replaced with a 
later version; and it needs a later wiring harness to run from the switches on 
the MC to a 3-way connector at the LR of the trunk.

I always save that harness when I part out a car, but I've used up all my 
saved harnesses. 

Does anyone have a parts car, '70 or later (preferably '71 or later) that they'd 
be willing to harvest that harness from and sell it to me, so I can do a good 
job of upgrading those '68-9s when they come to me?

thanks for reading and thanks from my customers who will benefit from this,

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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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