200-4R lock-up control

[Tony_SS]

I don't think I'd forget to lock it up.. running 3.73's and a higher stall.. I can definitely tell when it isnt locked up on the hwy. But I do prefer the vacuum switch over the kill switch.

The only aftermarket vacuum switch I found is a TCI one here. I read that if vacuum goes above 7.5 then it cycles off, so that the lockup would disengage when cruising, going up a hill, passing etc.. but it would/could also work together with the brake switch...

So I'm not sure just which route to go...