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Discussion Starter · #1 ·
Anyone know for sure what transmission is on the 2003 5.9 or 360 engine? I know they came with a 5 speed and its either the 45REF or 545REF :dunno:

Also I have a 2002 5.9 with the 46RE. With my current transmission issues, if I have to replace it, can I fit the 5 speed transmission from the 2003 model :IDEA: ?

Has anyone seen this done anywhere? What would be involved? Not planning on doing myself but what else would I need to buy? :help:

Thanks
 

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Platinum 2K R/T
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4,054 Posts
The 360 retained the 46RE until the end of 2003 and the 545 mated up with the HEMI starting in 2004. The 4.7L had a 4 speed up until 2001 when it was upgraded to a 5 speed auto for 2002. Your tranny in the 2003 should bolt up to the 2002 without any issues. :)

I thought about purchasing a higher mileage 5.9L durango for parts, but I'd have to store it 15min away (at work) as I have no space left here!
 

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Gromit
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278 Posts
This sounds like a cool project. If i ever have to put a new tranny in i'd like to try to do a 5speed if i can afford it. keep us posted!
 

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Pimp On Sir Don
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12,782 Posts
Since when was the 46RE a 5 speed? I thought they were 4? no?

I didn't think the 45/545's were going to mate up with a 360 crank / bell.
 
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