Just bought an 02 Durango SLT plus 5.9L 4WD with 154,000 miles any suggestions on tune up and any other maintenance?

 

Welcome to DF!

If you don't know the last time any particular maintenance item has been done, it's time to do it. For the tune up, make sure you stick with plain jane copper plugs, theses engines don't like the rare-earth fellers. Brand of your choice. Don't neglect cap/rotor/wires either. (get some GOOD plug wires, 8mm at least.) Mopar PCV valve. They are less than 10 bucks at the dealership. (and actually have the correct flow rate.)

Enjoy your new truck.

 

Thank you that’s definitely a good start

 

I think after running it for a week or so you'll know if it's a keeper or not and also start to learn what needs attention. Every vehicle needs different stuff. The list of what to check could be infinitely long but here's some that come to mind at the moment.

If it's a keeper I would start by changing all the fluids regardless of how the truck runs/drives. Note any leaks.

Check and replace all "rubber" as needed. Like belts, hoses, bushings, etc;
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Jack the front end up and give it a shakedown.

Investigate (if any) abnormal tire wear
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Check the shocks
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Check U-joints and CV joints.

Check the brakes, maybe even re-lube them

Take the belt off and give all the pulleys a spin and replace bearings if needed.

​​​​Keep plugs/wires as close to OEM as possible

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that's still "low" mileage if it has had much maintenance done by past owners at all. Mine had 214k miles on it when I got it.
What has been said above is a great plan and remember there is a reason that PM means "PREVENTIVE maintenance". Every machine needs it whether the owners like it or not, unless they prefer breakdowns.
I hate the kind of people that don't replace anything "until it breaks".