Myze

I have a 93 Dodge Cummins 2-WD with a bad transmission & an opportunity to buy a real slick 99 4-WD V-10 with a blown motor. What would I be getting myself into trying to exchange the Cummins with the V-10? Will the automatic transmission on the 99 V-10 bolt up to my 93 12Valve IC Cummins? Any websites out there that cover this type of adventure?

patdaly

Think you have to get a 2nd gen adapter for the engine. You would also need a Diesel converter and VB for sure.

Past that I know of nothing stopping you.

Myze

Where can I get an adapter , or is there any possibility of switching the bell housing from the 93 transmission to the 99 transmission? Sorry for my ignorance, but what's a diesel converter & a VB?

DevilzTower

the diesel converter and valve body are similar units (to gassers) but are designed to operate at much lower rpms, i don't know specific examples, but say a gas engine would have an expected stall at 2500rpm, whereas a diesel needs to be much lower, like 1500rpm so that the engine can work in it's operating window, cummins - 1000 - 2500 rpm vs gas 1500 - 4000 rpm.

patdaly

Exactly, and the Valve Body builds more pressure at a lower RPM to keep the clutches happy.

As for the block adapter, I am not 100 percent sure about that one, just guessing because you for sure have to change it for the Manual trucks, and I do not know if there were also changes in the 94 47RH bell housing.

Anyone else played with it?

dguru

How about the computer? The V10 computer runs both the engine and trans. Not sure if the trans will work without the engine. It will for sure need a TPS.

Myze

Really appreciate your guys input on this! Now that I know what you were talking about on the transmission valve body, patdaly. Then the computer & throttle position sensor communication concerns to the transmission you other guys brought up.

I'm starting to think I should be looking for something with a manual transmission to perform the organ transplant on!

DevilzTower

I didn't say it in my original post, but it needs to be said ...

Have you answered the emissions question? Generally all OBD II (96-UP) vehicles will require emissions testing. Depending on the what the state allows you may not be able to license the truck with the 93 engine installed.

I would be able to look up specifics but, no location in your sig.

oliver foster

No OBD testing on 3/4 ton hd truck and over in VT. You will also need a 2nd gen diesel starter to deal with the added adapter plate