45,000 mile maintenance

2009 DCSB OR. Coming on 45,000 miles. Got it with approx 39,000 miles. I'm the second owner of this truck. Got it from a dealer and there's not much documented maintenance. I have a free weekend coming up so I figured I should knock out some maintenance and spring/summer prep work. I changed the oil to Mobil 1 synthetic about 3k ago but I'm planning on changing it again just to get it onto an easy 5k interval. Just looking for suggestions on what I should check/change and recommended parts and fluids. Here's what I'm thinking so far:

New OEM filter + Mobil 1 full synthetic 5W-30
Grease drive shaft (recommended grease?)
Change rear diff fluid (recommended fluid brand/weight?)
Get the rust off the frame, repaint and fluid film
Clean and lube uniballs (Triflow)

Carrier bearing?

Mainly looking for joints and bearings that I should check and grease. Thanks for any help!

 

Check the air filter and cabin filter.
Being an '09, coolant drain and refill would not be a terrible idea, though the SLLC should still be good... might wait on that for 60k.

 

I'll check the air filter. Cabin filter looked ok when I replaced the blower motor about 500 miles ago. Thanks for the input!

 

I defenitly wouldn't cheap out on the gear oil and go to the dealer and get a new diff vent they are less than 20 bucks

 

check the tie rods, wheel bearings, ball joints, suspension, etc. Give everything a once over.

 

Oh and OIL THE SHIT OUT OF THE BOXED SECTION OF FRAME!!!!!!!!

an once of prevention is worth a pound of cure and these frames are rusting out like crazy.

 

Thanks for the tips guys. I have some rust converter, extreme chassis black and internal frame coating from Eastwood I plan on using before the FF. Thanks for reminding me about the tie rods!