Not sure where the other neutral safety wire goes. Ground?

John...Are you planning on using the neutral safety switch on the tranny? If so than one of those wires go to the negative post on the slave solenoid and the other wire goes to ground. That switch works by breaking ground to the slave solenoid. In theory you would then be breaking power on both the positive and negative sides going to the slave solenoid when in use with your throtle/shifter neutral safety switch also. If you choose to eliminate the neutral safety switch from the tranny than you will need a ground wire from the ground post on the slave solenoid. Then you will just be breaking power on the positive side at the throtle/shifter neutral switch. What's up with the pic of the purple wire???

I plan to use the shifter ones however in which case they don't work I just thought I'd hook these back up. If the shifter ones work which I would expect they would then can I ditch those selonoids and extra wiring?

You mean the neutral switchs on the trannies??? You can but as I said you will have to put a ground wire to the post on the slave solenoid.

Yup were on the same paid.

Just for everybodys information. The original 23-71647 bushing, is of course nla. The cross is a National PB50DHD. The OD with have to be turned down to 1.706". Without the bushing, it can be oil pump suicide.. www.kcmarinetr.com ... Also; The 85789a2 manual shift conversion kits are getting quite rare. We are in the initial stages of production i,e.. Working on the electronic file. Probably going to make them out of Delrin

That's good information. thanks for posting and update. Appreciate that. I will undoubtably put these to the test this summer with new power. With new Gatling trans coolers and driving sensibly along with routine oil change I'm not worried. If I wipe one out here and there so be it. Might have to ease up on the reentry a tad also.