Re: E350 tach connection
I can't say where it is for your specific vehicle, but the tach gets its signal from the vehicle's speed sensor. You should be able to get to the signal wire in the engine compartment. If you have a shop manual, take a look at the wiring diagram so you don't splice into the wrong wire.
1992 Ford Bronco
E4OD- B&M Stage 2 shift kit
Full 3" stainless Bassani Exhaust
32" BFG's/stock suspension
"No replacement for displacement."
"Our lugnuts require more torque than most Honda's produce!"