Re: Stewart's 1955 Packard 400

Posted by Stewart Ballard On 2023/8/24 6:33:08

I do not disagree with you Howard as you have way more knowledge of all the electrical stuff than I do but the relay is for the pressure switch not the solenoid.

Monster Transmission has an interesting transmission kit for units that already have the lockup kit installed internally (like mine). They mount an external pressure switch into the 4th gear port and wire it so that you can turn it on while on the highway and when the 4th gear kicks in it will engage the lockup on its own. Then when pressure drops, it will disengage the lockup. For local driving, around town, you would not even turn the switch on. This kit uses no relay at all.