Parts for your 2020 Mitsubishi Asx-Universal joints

2020 Mitsubishi ASX universal joints: what’s fitted and how to look after them

Universal joints (U-joints) are relevant on some 2020 Mitsubishi ASX models, but not all. Technical sources including the Mitsubishi Motors Service Manual for RVR/ASX (2019–2020, Propeller Shaft and Front Axle chapters), the Mitsubishi ASA/CAPS electronic parts catalogue, and mainstream workshop references for Outlander Sport/ASX (2011–2020 coverage) clarify it this way: front-wheel-drive (2WD) ASX models use constant velocity (CV) joints on their front driveshafts and have no propeller shaft, so no U-joints are fitted. All-wheel-drive (AWD) ASX models add a propeller shaft running to the rear differential, that assembly incorporates universal joints and a centre bearing, with sealed, non-greaseable bearings noted in OEM literature.

For 2WD owners wondering why there are no U-joints: the layout doesn’t need them. The transaxle sends power straight to the front hubs via CV-jointed halfshafts. CV joints handle the big steering and suspension angles smoothly and quietly, so a U-joint simply isn’t part of the design.

For AWD 2020 ASX owners, here’s the lowdown on U-joints. The prop shaft’s universal joints let the shaft transmit engine torque while the body and rear diff move around with the suspension. That flexibility keeps things smooth at highway speed and off the beaten track. On this platform the U-joints are typically sealed and staked into the propeller shaft, which means there’s no regular greasing point and, when badly worn, the usual fix is replacing the complete prop shaft or having a driveline specialist rebuild it.

• What to watch for:
  • A dull clunk taking up drive or shifting between reverse and drive
  • Shudder or droning vibration that rises with road speed
  • Rusty dust around bearing caps, or visible play when the shaft is rotated by hand
• Service tips:
  • During routine servicing, check the prop shaft bolts, centre bearing rubber, and rear diff flange for movement
  • If removing the shaft, mark the flanges to keep balance and phasing on reassembly
  • Don’t ignore vibrations—left alone, a failing U-joint can take out the centre bearing or damage flanges
• Replacement guidance:
  • Because the OEM joints are sealed/staked, most workshops fit a new or exchange prop shaft
  • Specialist driveline shops can often rebuild with serviceable joints if you prefer

Referencing: Mitsubishi Motors Service Manual (RVR/ASX 2019–2020) confirms CV-jointed front driveshafts and a propeller shaft with universal joints on AWD, Mitsubishi ASA/CAPS EPC lists “Joint, Universal” within the AWD propeller shaft group, aftermarket workshop manuals for Outlander Sport/ASX 2011–2020 include a Driveshaft/Universal Joint section for AWD and a CV Joint section for 2WD.

Popular questions

Does my 2020 ASX actually have universal joints?
2WD models don’t—they use CV joints only. AWD (4WD/AWC) models do, as part of the propeller shaft to the rear diff. If you’ve got a 4WD button/selector and a rear diff, you’ve likely got U-joints.

How can I tell if the U-joints on my ASX are worn?
Look for a clunk taking up drive, speed-related vibration, or red-brown dust near the joint caps. With the vehicle safely raised, slight rotational play at the rear flange is another giveaway. Get it checked early to avoid collateral damage.

Do the ASX’s U-joints need greasing?
No. The factory joints are sealed. There’s no greasing point, so the focus is on periodic inspection and replacing the prop shaft or having it rebuilt when wear shows up.