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87heaven
Dodge Dakota
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10/27/2003
20:29:25
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 Subject: 3.9 to5.9 swap
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i have a 87 dakota (carb) not injected 4x4 ...a 1990 dodge ram just fell into my lap with a v8 will it bolt up to my trans? any thing else i should be aware of i have the whole truck and i dont want to throw away anything i might need for the swap
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muddertrucker
Dodge Dakota
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10/27/2003
22:23:29
| RE: 3.9 to5.9 swap
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i'm pretty sure that the 1990 v8 will not fit the same engine mounts. however the 1993 and newer will.
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87heaven
Dodge Dakota
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10/27/2003
22:39:17
| RE: 3.9 to5.9 swap
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i di some looking around found out its gona be a pain to much work for my hunting truck theysay the apn wont clear the diff but thanks anyway now im looking for a carb swap i just need to know if the pcm will still do its job with out feedback from the carb
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muddertrucker
Dodge Dakota
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10/27/2003
22:46:45
| RE: 3.9 to5.9 swap
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a two barrell or four?
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87heaven
Dodge Dakota
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10/27/2003
22:54:26
| RE: 3.9 to5.9 swap
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Message:
2
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muddertrucker
Dodge Dakota
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10/27/2003
23:05:44
| RE: 3.9 to5.9 swap
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sorry i don't know anything about the two barrels. but i do know that holley made a small four barrel for the 3.9L.
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gen1dak
Dodge Dakota
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10/28/2003
02:49:56
| RE: 3.9 to5.9 swap
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So why not change the pan?
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87heaven
Dodge Dakota
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10/28/2003
06:28:18
| RE: 3.9 to5.9 swap
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if its just the pan that hits ill do it.im just looking for somone who did this and has a few notes that could help me save time and $$$
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Steve Calabro
Dodge Dakota
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10/28/2003
08:45:38
|  RE: 3.9 to5.9 swap
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the tranny in the 39 n 59 are different, the drive train might b ripped apart by the more torque and power
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gen1dak
Dodge Dakota
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10/28/2003
13:15:06
| RE: 3.9 to5.9 swap
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Uhhh, no, that's not the case at all. We are talking automatic trannys? Sticks, I don't know, but automatics? This is do-able, and very easily. So is it stick or automatic?
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87heaven
Dodge Dakota
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10/28/2003
19:39:57
| RE: 3.9 to5.9 swap
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the trans is a auto the new motor is a 5.9 the trans will mount up its a torqueflight pattern i just dont want to have to fab a oil pan this is my hunting truck its in great shape but grossly underpowerd and ive had a few delemais with the carb a few rebuilds and a home made two stage acclerator pump sice you cant find the replacement part for the original but i was hoping this was a drop in kinda like changing a 250 chevy to a 350 the wiring is cake for me and like i said i kinda wana talk with somone who has done this swap to see where or if they had any problems my guess would be the crank sensor location oilpan fit and possibly a torqe converter change
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87hevean
Dodge Dakota
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10/28/2003
20:00:07
| RE: 3.9 to5.9 swap
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also i rather not shorten drive shafts and go through the pain of fabricating a bunch of parts id spend the money on some good bottomend parts for the 3.9 and make the heads work right first i guess im just looking to see what a pain this is or isnt i had the 5.9 runnin today and its strong i found a great cam for it at a resonable price and have also accired a off road ecm so im into this project for a big fat zero right now i can get the cam and timing set for a few hundred witch would be a great upgrade. so the question lies does it fit what mounts fit it best and do i need the slide rule to do this
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