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W Wow that’s crazy! I wish I was better at understanding wiring so I could figure this out I’m hoping once I get the Dakota Digital rpm box the instructions will clear things up.

Mine is actually a 4L85E pulled from a 2007 2WD bus behind the Duromax. It has two sensors on the side of the case. Is one the input speed sensor and the other the output speed? sensor

I’m not sure if you said this earlier but what controller are you using? Does it require a tach signal?

Awesome. Have a great weekend.

Keith One last question. Do you have a model number of the Dakota tach module you used?

Again Thank You. Once I get this project rolling I might reach out to you for more input. Thanks

Perfect Thanks. Do you remember if it was a A/C signal or a D/C square wave?

Forgive me for sounding stupid but wouldn’t I need the terminal end that attaches to the alternator to run the wire to the Dakota digital converter box? I didn’t take the tach wire off the back of the alternator yet but it looks like a special type of connector. That’s why I asked if I could cut...

Kiethj I looked at my truck my alternator has that exact wire that your pointing to in your picture. Do I just cut the wire at the harness? That won’t affect anything to do with the way the truck charges?

Barman Thanks! I never thought about the sensor leaking oil. I'm glad you mentioned it. I can get one from AutoZone my cost is 235.00 and then I have to worry about future failure and oil leak I'm going to look into the alternator tach signal and convertor box. I suck at electrical but I'll have...

I have been reading and searching just thought I’d pick some brains before I dug in. The oil pump drive with the engine speed sensor is expensive which I’d buy if someone could tell me if it would work. I even called MSD but the tech wasn’t very helpful. Im going to try again and hopefully get a...

Kieth J Do you know what that tach signal on the CUCVs is used for?

Thanks Your the best!!

Can you send me a picture of what I'm looking for? Thanks

Nobody?

Hello All Can someone point me to a Thread that talks about different methods to pick up an Engine RPM Signal for the TCM on my 4L80E Swap? I have the MSD TCM already I'm wondering if anyone has dealt with this yet. Thanks In Advance