On the XA50 RAV4 this is a bolt-on hub job, not a press job. Four bolts through the back of the steering knuckle hold a sealed hub/bearing cartridge, so you do not have to split the ball joint, disturb the strut, or take the knuckle to a shop. What makes it a hard job rather than an easy one is access: the four bolt heads sit behind the knuckle with the drive axle in the way, and the 30 mm axle nut is torqued around 200+ ft-lb and often corroded.
The thing people get wrong is the mating surface. Everyone focuses on torque and forgets to scrape the rust ridge out of the knuckle bore, so the new hub sits a fraction cocked and either vibrates or fails inside a year. The second mistake is mishandling the inboard seal — the ABS magnetic encoder is built into it, and a scratched or magnet-contaminated encoder means an ABS/VSC light that no amount of code clearing will fix.
| Item | Type | |
|---|---|---|
| Floor jack 2 ton minimum Lift the front of the car at the pinch-weld or subframe jack point. | Required | shop |
| Jack stands 2 ton pair Support the car while the wheel and hub are off. | Safety | shop |
| Wheel chocks Block the rear wheels before lifting. | Safety | shop |
| Socket, wheel nuts 21 mm, 1/2 in drive (thin-wall for alloy wheels) Removes the five wheel nuts. | Required | shop |
| Breaker bar 1/2 in drive, 24 in or longer Cracks the wheel nuts and the very tight drive-axle nut. | Required | shop |
| Axle nut socket 30 mm, 6-point, 1/2 in drive Removes the front drive-axle hub nut. | Required | shop |
| Chisel and hammer Small cold chisel or punch Unstakes the axle nut collar if your nut is the staked type. | Required | shop |
| Socket set 10, 12, 14, 17, 19 mm, 3/8 and 1/2 in drive, 6-point Caliper slide bolts (14 mm), caliper bracket bolts (19 mm), ABS sensor bolt (10 mm), hub bolts (17 mm). | Required | shop |
| Long extensions and wobble extension 1/2 in drive, 6 in and 10 in plus wobble Reaches the four hub bolts from behind the knuckle around the axle shaft. | Required | shop |
| Ratchet 1/2 in and 3/8 in drive General fastener work. | Required | shop |
| Combination wrench set 12-19 mm Holds caliper slide pins and gets into tight spots the ratchet will not. | Required | shop |
| Torque wrench 1/2 in drive, 50-250 ft-lb Sets the axle nut, caliper bracket and hub bolts to spec. | Required | shop |
| Torque wrench (small range) 3/8 in drive, 10-80 ft-lb Accurate for the caliper slide bolts and ABS sensor bolt. | Recommended | shop |
| Hub/axle puller or 3-jaw puller Bolt-on hub puller kit Pushes the splined axle stub out of the hub if it is rust-seized. | Recommended | shop |
| Dead-blow or brass hammer 2-3 lb Taps the axle out of the hub and shocks the old hub loose without damaging threads. | Recommended | shop |
| Pry bar 12-18 in Levers the bearing flange out of the knuckle bore and holds the rotor while breaking the axle nut. | Recommended | shop |
| Bolts for rotor removal M8 x 1.25, about 40 mm long, two off Threaded into the rotor's jacking holes to push a rust-stuck rotor off the hub. | Consumables | shop |
| Bungee cord or wire Hangs the caliper so the flexible brake hose is not stretched. | Required | shop |
| Penetrating oil Soaks the hub bolts and the knuckle-to-hub joint the day before. | Consumables | shop |
| Wire brush and brake cleaner Cleans rust out of the knuckle bore so the new hub seats flat. | Consumables | shop |
| Anti-seize or silicone paste Nickel anti-seize, thin film A light film on the knuckle bore only, never on the bolt seating faces or the encoder seal. | Consumables | shop |
| Front hub bearing assembly XA50 front hub with integrated ABS magnetic encoder The replacement unit; Toyota or a known OE supplier is worth it here. | Parts | shop |
| Axle hub nut 30 mm front axle nut Staked/locking nuts are single-use; fit a new one. | Parts | shop |
| Nitrile gloves and safety glasses Rust, brake dust and penetrating oil spray. | Safety | shop |
| OBD2 scan tool ABS-capable code reader Clears ABS/VSC codes stored while the wheel-speed signal was missing. | Recommended | shop |
Tool sizes are the same across the whole XA50 range — 2.5 L A25A-FKS gas, Hybrid, Prime/plug-in, LE through TRD Off-Road. Every version drives the front wheels, so every version has the 30 mm axle nut. The only practical differences are that TRD Off-Road and Adventure trims often have heavier rust and more road grit on the hub bolts, and larger-wheel trims need a thin-wall 21 mm socket to avoid marking the alloy.
| Wheel nuts | 76 ft-lb (103 Nm) |
| Front drive-axle hub nut | approx. 217 ft-lb (294 Nm) — verify in the service manual for your build |
| Hub/bearing-to-knuckle bolts (4) | verify in the service manual |
| Brake caliper bracket (mounting) bolts | verify in the service manual (typically about 79 ft-lb / 107 Nm on this platform) |
| Caliper slide bolts | verify in the service manual (typically about 25 ft-lb / 34 Nm) |
| ABS speed sensor bolt | verify in the service manual (low, roughly 7 ft-lb / 9 Nm) |
Wheel nut size (21 mm), wheel nut torque (76 ft-lb) and the 30 mm axle nut are reliable for the XA50; the hub-to-knuckle bolts are 17 mm on the units I have handled but check your car and confirm all torque values marked 'verify' in the Toyota service information before final tightening.
Yes. The XA50 uses a bolt-on sealed hub/bearing assembly retained by four bolts to the knuckle, so no press or bearing driver set is needed. You mainly need a 30 mm axle nut socket, a breaker bar, and a 17 mm socket on long extensions.
30 mm, 1/2 inch drive, and it is very tight — plan on a 24 inch breaker bar and a torque wrench that reads to at least 250 ft-lb for reinstallation. Always fit a new nut.
The wheel-speed encoder is moulded into the hub's inboard seal, so a damaged seal, a hub installed backwards, or a dirty ABS sensor mounting face will give a wheel-speed fault. Clean the sensor and its seat, confirm the hub connector orientation, then clear the stored codes with a scan tool.
No. Because the hub bolts to the knuckle and you never touch the tie rod, ball joint, or strut bolts, alignment angles are unchanged. If you had to separate any steering or suspension joint to get clearance, then get it aligned.