Dually rear end swap question

[rusty ol ranger]

Thanks for the clarification, I was hoping it wasn't really necessary.

Unfourantly it is.

I know when the sensor quit on my 97 F250 it wouldnt even shift outta first and if i bumped it manually it shifted so hard it barked the tires

 

[lowspeedpursuit]

If you want to know what will happen 100%, go unplug your RABS sensor and drive around the block.

If you go into limp mode or lose something important, you'll have to keep it working. If you lose ABS and that doesn't bother you, you can do whatever you want.

 

[wellcraft]

I guess this is what I will need but something that somehow works with that old diff.

rear differential drive shaft speed sensor kit - Google Search