I found quite a few people were upgrading the NBSU switch on their allisons. Is this necessary for those of us with the 2004.5 model year?

I bought one recently and found the plugs are different. I have one large plug and the new NBSU wants two small ones. (to each his/her own):h )

So, apparently, I can't use this one. Does someone want to buy it from me?

Thanks,

JT

Anyone want to help me out here?