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chris case
Dodge Dakota
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3/09/2008
21:48:06
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 Subject: 3.9 v6 w/ auto line up with manual?
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I bought a parts truck, same year and motor only differnece is that the tranny is a auto, but mine is a stick shift. Will the motor line or do I need to get an adaptor?
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screwuphead
Dodge Dakota
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3/11/2008
17:48:01
| RE: 3.9 v6 w/ auto line up with manual?
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Message:
are your serious?!
wow..i hope your not doing it yourself to ask a question like that.
it will line up.
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dakota49
Dodge Dakota
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3/12/2008
15:40:37
| RE: 3.9 v6 w/ auto line up with manual?
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Message:
chris, then engines are the same, the difference is the flywheel/flexplate. The manual uses a flywheel, and the auto uses a flex plate. Are you wanting to put the engine in your truck with the manual transmission? Or use the auto in your truck? It can be done just need to use the parts for the transmission you plan on using. Let us know what you want to do, and I'll try to explain what you need to do.
Good Luck
Dakota49
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chris case
Dodge Dakota
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3/12/2008
19:23:02
| RE: 3.9 v6 w/ auto line up with manual?
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Message:
Im putting the motor that was hooked up to a auto tranny into my truck with a manual tranny
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daddio
Dodge Dakota
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3/12/2008
21:23:20
| RE: 3.9 v6 w/ auto line up with manual?
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are both trucks the same year? you'll need the pcm to match the engine/tranny combo in your truck. so if you're transferring the manul trans to the auto truck, swap the pcm too. of course you'll need the clutch and brake pedals, clutch hydraulic system and a couple fo other things. steering column too.
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chris case
Dodge Dakota
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3/12/2008
22:08:51
| RE: 3.9 v6 w/ auto line up with manual?
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Message:
they are a year apart my truck is a 93 w/ a manual tranny, the parts truck is a 94 with an auto tranny. Im taking the engine out of the 94 and putting it in my 93
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dakota49
Dodge Dakota
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3/14/2008
21:55:49
| RE: 3.9 v6 w/ auto line up with manual?
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Message:
chris, all you will need to do is remove the engine from your donner truck, remove the flexplate, use the flywheel from your 93 and use the rest from your 93 and it should work ok, I wouldn't be worried about using the 94 computer, I think they are close enough to work correctly.
Just be sure you use the crank position sensor from your 93 but I think its mounted on the bellhousing so you wouldn't need to remove it anyway.
I Hope this helps,
Good Luck
Dakota49
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Stoneslinger
Dodge Dakota
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3/15/2008
04:34:24
|  RE: 3.9 v6 w/ auto line up with manual?
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Message:
Dakota49 is correct, you will need to change the harmonic balancer from the 93 and put it on the 94 engine. It will be balanced to work with a flex plate and torque converter. You will experience a vibration if you don't. Good luck in the change over.
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dakota49
Dodge Dakota
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3/15/2008
12:14:21
| RE: 3.9 v6 w/ auto line up with manual?
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Message:
Chris, I think some of the people here must have misunderstood what you are trying to do, if I read it correctly, you want to take the engine out of a truck with an auto and put it in your truck with the manual, so again the only thing I see that would need to be changed to make everything work is the flywheel from the manual to the engine that has the auto.(auto's use a flexplate) Of course you will also need to use the clutch assimbly with the manual trans as well.I don't think it is going to be nearly as hard as it sounds I have done things like this in the past and if you have the tools it can be done in a weekend, if you don't have the tools that make life a little easier, like air tools, it can still be done in a weekend but you will have to work pretty fast. Or you could take a couple of weekends if you don't need the truck right away.
Good Luck, if you have any more questions please feel free to ask, I try to check out this site at least once a day.
Dakota49
1988 3.9 4X4 5speed
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Daniel Goff
Dodge Dakota
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10/17/2019
03:30:12
| RE: 3.9 v6 w/ auto line up with manual?
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Message:
You will also need to install a
pilot bushing in the end of the
crankshaft, the automatic
doesn't use one the manual
transmission does. Good luck
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Scott
Dodge Dakota
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8/04/2023
08:38:15
| RE: 3.9 v6 w/ auto line up with manual?
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Message:
Took a 3.9 engine with the engine code w out of
a 1500 ram pickup 99 model putting it in a 99
model Dakota engine code w the Dakota has an
automatic transmission the 1500 ram had a
manual I swapped flex plates crank sensors
remove pilot bearing because I'm using the
automatic transmission that is in the Dakota
transmission gets up to a quarter inch and the
torque converter stops spinning and the
transmission will not get any closer than a
quarter inch I have installed the torque
converter three times to ensure that I have the
two clicks that it takes for it to be properly
seated
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