reverse interlock

I have a 97, 9400 that has the reverse interlock. I want to regear it and have rears with the standard interlock, has anyone changed the plumbing on the switch and parking brake to swap back over to a regular setup?
Can a guy change out the interlock setup on the rear itself from a standard one to the reverse setup on a 404 front rear?

 

But I already have a set, plus I do not like the reverse set up at all, why work the fork that much when there is no need or benefit?
If I do buy some more, I will go new not rebuilt, and they have already told me they may not even be able to get new ones, but weren't sure. If I change gear ratios, it is pretty much the same price for new ones and keep my old ones as it is to buy rebuilt ones.

A modelCat. international in their wisdom for several years made the interlock work backwards, it locks when you take the air away from it instead of locking with air, and locks every time you set the brake.
The reasoning that they explained to me was because most road trucks just have spring brakes on one axle, this way when parked all both axles are locked together, and supposedly hold better. lol

 

If you ever run across an international with a major air leak you can't find, check the vent on the front diff. lol

 

I am thinking I should be able to block off the line from the parking brake valve and just install a different interlock valve and switch for the light, and it should work normal, I think.