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Discussion Starter · #1 ·
Hi - I'm in the process of pricing out a rebuild of my 2003 Dodge Durango SLT 4x4. It currently has a 4.7 liter motor.

I'm seeing conflicting information online but want to know if there's something that came from the factory with the 5.9's that the 4.7's didn't have that enabled it to tow more.

I've found this online towratings.net/detail/2003/dodge/Durango+4wd

I've also attached a screenshot from my owners manual.
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Are there any additional frame reinforcements that came on the upgraded engines models? Or do I simply need to make sure that I have the correct gearing, engine size, and tow package to pull heavier weight?

Any help is appreciated!
 

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Discussion Starter · #3 ·
Thank you!

The reason I'm asking is that I'm considering completely redoing my Durango into an overlander.

I.e. new engine, new tranny, solid front axle, new gearing, suspension lift, new tires, rims, new paint job, overlander set up interior, cargo racks, etc

I don't think I could do this if the frame of the vehicle can't support more than 5,200 lbs of towing. Though, I don't suspect I'd ever really tow 7k lbs, it would be nice to have just in case.
 
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