I haven't been able to find a video, but I did replace the rear drive shaft on my 2014 Patriot. It was really simple. If working in your driveway, back the rear wheels up onto ramps, then jack the front end up and put the front on jack stands. One of the front wheels must be able to rotate. When it's all up in the air securely, crawl under there with a 13mm and 15mm socket, ratchet & 6" extension, and a drain pan.

Start by removing the 3 bolts that hold on the heat shield to the carrier bearing in the center of the drive shaft. Then, remove the 3 bolts that hold the carrier bearing to the underside of the vehicle.

Place the drain pan under the PTU/front of drive shaft. Then, remove the 4 nuts that hold the drive shaft to the RDU. The studs bight come off with the nuts, mine did. If so, hold the stud with a pair of pliers, right behind the nut and remove the nut, then thread the stud back in as tight as you can. I added a little blue threadlocker to mine. Once all the nuts are off, pop the shaft off of the studs, then pull the drive shaft out of the PTU. Gear oil from the PTU will drain out.

When installing the new one, first insert the front into the PTU. Be careful not to damage the oil seal. Then bolt up the rear to the RDU, then bolt up the carrier bearing and reinstall the heat shield. After it's all back together, completely drain and refill the PTU, and you might as well drain and fill the RDU while you're at it. They both need to be done at least every 60k miles.

 

Mr_et2,
Thank you for taking the time to break down the process of changing the drive shaft however you were talking about the PDU and the RDU I'm not sure I know what those abbreviations staying for if you could reply with what those abbreviation stand for I'd appreciate it again thank you

 

PTU stands for Power Transfer Unit. On the Patriot it acts like a single speed transfer case. From the drive shafts perspective, it's at the front on the driveshaft and the splines at the front of the driveshaft slide into it.

RDU stands for Rear Drive Unit. It's like a rear differential. Most similar small to mid size Crossovers and SUVs use an RDU instead of a rear differential.

 

How do I put fluid back into them

 

Here's a write-up on it:

https://www.jeeppatriot.com/threads/changing-rdu-and-ptu-fluid.103928/#replies