Parts for your 1998 Toyota Rav4-Universal joints

1998 Toyota RAV4 universal joints (U-joints): what they do and when to replace

Universal joints are relevant to the 1998 Toyota RAV4 when it’s the all-wheel drive (AWD/4WD) variant. The factory repair manual for the 1996–2000 RAV4 (Propeller Shaft section), Toyota’s Electronic Parts Catalogue for AWD models, and popular workshop manuals like the Haynes RAV4 guide all show a two-piece rear propeller shaft using cross-and-roller universal joints with a centre support bearing. Front-wheel drive (2WD) models don’t have a rear prop shaft, so they don’t use U-joints, they run constant-velocity (CV) joints on the front driveshafts only.

On an AWD 1998 RAV4, the U-joints sit at either end of the rear propeller shaft, allowing the shaft to transmit torque at changing angles as the suspension moves. Their job is to keep the drive smooth and quiet while coping with articulation and load. When they wear, owners tend to feel shudders on take-off, vibrations at highway speeds, or hear a tell-tale squeak or clunk when shifting from drive to reverse.

Servicing-wise, most factory RAV4 prop shafts from this era use sealed, non-greaseable U-joints that aren’t designed for periodic lubrication. Toyota typically supplies the complete propeller shaft as an assembly. That said, many driveline specialists can rebuild the original shaft and press in quality replacement U-joints, often switching to serviceable (greaseable) types to extend life. Inspection every 20,000–40,000 km during routine servicing is a smart move—especially if the vehicle tows, sees gravel roads, or carries loads frequently.

• Common symptoms of worn U-joints:
  • Vibration that changes with road speed, most noticeable under load
  • Clunk on tip-in/tip-out or when selecting drive/reverse
  • Chirping/squeaking at low speeds that disappears at higher speed
  • Visible play at the yokes or rust-coloured dust around bearing caps

If any of these show up, owners should avoid hard acceleration and book a driveline inspection. Left too long, a failed U-joint can damage the centre bearing, flange yokes, or even the transmission/diff flanges. Replacement involves safely supporting the vehicle, marking the flange relationships to maintain balance, removing the prop shaft, and either fitting a new shaft assembly or having a specialist rebuild it. Final reinstallation should follow factory torque specs and phasing to keep the shaft balanced and vibration-free.

FAQs

Does a 1998 Toyota RAV4 have universal joints?
AWD/4WD models do—there are U-joints on the rear propeller shaft. The 2WD version doesn’t use a rear prop shaft and therefore has no U-joints, it uses CV joints on the front driveshafts.

Can the U-joints be replaced on their own, or is a full prop shaft needed?
From the factory, the joints are generally sealed and considered non-serviceable, so Toyota supplies the complete prop shaft. However, many driveline shops can rebuild the original shaft and press in quality replacement U-joints, often opting for greaseable versions to improve longevity.

What are the signs it’s time to replace the U-joints?
Look for vibrations with speed, a clunk when shifting between drive and reverse, and squeaking at low speeds. Any noticeable play at the yokes or rust dust near the bearing caps is also a red flag and warrants prompt inspection.