quick help -- distribution block wire

[SMPLTN]

Need some help on a wiring question. On top of the distribution block, there's the double wire plug (a gray and a black wire).. Which way does it connect? I was fixing some wiring and figured it could only be oriented one way but seems that either way works. Gray or black wire closer to the firewall?

 

Thanks

[Eagle]

Doesn't matter. It's just an ON-OFF switch that closes a circuit if there's a brake failure.

[SMPLTN]

'Preciate it sir. I thought that may have been the case but wanted to confirm that. Fixing some electrical issues. I also have a bad short due to a leaking clutch master cylinder :grrrr: . Replacing the engine side 'plug' at the firewall and then splicing wires at the air box. Good chance I'll have question on two :) ...

 

I'm also replacing the battery cables. Is that a "stick to the manual" job?