Checks, in order
- U-joints and slip yokeGrab the driveshaft and twist it by hand, looking for play at each joint. Grease the slip yoke if it has a fitting and replace any rusty joint.easy $ · under about $50
- Wheel bearingsJack the truck and spin each wheel by hand. A growl or roughness points to the bearing.medium $$ · about $50 to $500
- Front CV axles on 4WDA clicking noise while turning with the wheels cranked over points to a worn CV joint. Check for torn boots and flung grease.medium $$ · about $50 to $500
- Differential fluid and leaksCheck the fluid level in the front and rear differentials and look for pinion seal leaks. Low or burnt fluid explains a whine.easy $ · under about $50
- Pinion and carrier bearingsA whine on drive or coast that changes with throttle usually means worn gears or bearings. This is a shop level diagnosis and repair.hard $$$ · shop-level job, $500+
Applies to: 1996 to 2002 4Runner with the 2.7L 3RZ-FE four-cylinder and the 3.4L 5VZ-FE V6, 2WD and 4WD, manual and automatic. Where a check only applies to one engine it says so.
Tools and parts for these checks
Links below are Amazon affiliate links: as an Amazon Associate, toyotadata earns from qualifying purchases, at no extra cost to you. Confirm fitment for your exact truck before you order.
| ITEM | USED FOR | BUY |
|---|---|---|
| Driveshaft U-joint | Replacing a worn U-joint | Shop on Amazon |
| Driveshaft center support bearing | Replacing a worn carrier bearing (two-piece shafts) | Shop on Amazon |
| Lever grease gun | Greasing U-joints and the slip yoke | Shop on Amazon |
| Pry bar set | Checking ball joints, bushings and tie rod ends for play | Shop on Amazon |
Go deeper
Other drivetrain problems on the 3rd Gen 4Runner
More 3rd Gen 4Runner problems
- Clunk, knock or loose feel in the front end over bumps (Steering & Suspension)
- Shimmy, vibration or steering wander at highway speed (Steering & Suspension)
- Frame rust, rotten rocker panels or rusty underbody (Frame & Body)
- Engine overheating or temperature gauge climbing (Cooling)
- Pink or milky transmission fluid, or coolant in the transmission (Transmission)
- 5VZ-FE timing belt service: when is it due and how do I tell? (Engine)
All 16 3rd Gen 4Runner symptoms in the interactive troubleshooter →
General guidance from owner experience. Confirm torque specs, fluid capacities and procedures in the factory service manual. Brakes, steering and anything structural: if in doubt, have a qualified shop inspect it before driving.