46rh transmission center conversion

Hey guys doing a transmission center 46rh transmission pressure switch conversion. Coming across a dilemma got my buddies helping me out with this feature, I’m getting two different answers on how it works…. Does the lock up converter, lock up before the Overdrive or does the overdrive kick in before the lock up? Sorry guys this conversation got me confused.

Yes as said OD, then lockup.

FYI, OD is fed off the third gear pressure, meaning there is no way the trans can apply OD before it’s in third first.

LU can be engaged at any time and any gear.

If you plan on using pressure switches, it’s a good idea to set up OD first, then set up Lockup.
This keeps OD and LU physically separated so it doesn’t cause confusion over which is engaging when.

Set your LU high at first, then lower it to your preference, to keep LU from engaging before OD.

Also keep in mind what happens if you have lower gears, that you pretty much can’t manually downshift to second gear while in overdrive.
The trans will drop out of 3rd and OD at the same time since OD and 3rd use the same feed, and could cause an over rev.