Pete 359 - Temp sender locations on engine/trans

I played the same games with my T2000 - from a fleet guage package to an O/O package. A little more annoying as the gauges are all electrical in the cluster, but found the harness supported the rear axles (which you found), the main trans temp (mine is EF13 and I found it on the passenger side, midway up.

If you mean N14 as in 'small cam Cummins', can't recall if it was the oil pressure or oil temp that was drivers side toward the front.

 

Only one temp sender on the 13 speed. On the bottom. Look for a/1/8 pipe plug if the old sending unit is not there.
The pyro sending unit will have a two wire harness with round eyehole connectors that should attach to the truck harness with a small screw and nut for each wire.
For the engine oil temp sensor, I will have t think about that and thinking is very painfull these days. I'm guessing the cam side of the engine toward the back in the area of the rear cam follower. Look for 1/8" pipe plug if the old sending unit is not visable

 

If it is a "Small Cam Cummins", that is a very old engine, but regardless, the principles are the same. Look for a plug at the rear of the oil pan(or front, if it is a set back axle truck- wherever the deepest part of the pan is) The oil temp probe will need to be submerged in oil to work properly.. The 13 speed- one send unit is normally on pass. side of trans, almost at the bottom, but the plug will be on the side.. The pyrometer is electric, the wire length will not matter on that, but make sure you Thermocoupler is not broke(the piece that screws in to the exhaust pipe right behind the Turbo.. Hope this helps, Tim