Symptoms
Steering-wheel shake around 45–50 mph, play when you rock a raised wheel at 12 and 6 o'clock with the brakes held, and diff oil mixed with grease leaking from the swivel ball. A rusted-solid lower bearing can show no play at all.
The fix, step by step
- Strip the steering knuckle, replace both tapered kingpin bearings (BigJimny recommends Koyo, the OE supplier) and fit the 26 x 38 x 9 mm double-lip Suzuki halfshaft seal rather than a shallower aftermarket one.
- Pack the bearings with heavy-duty waterproof grease in normal quantities, use only a thin film of sealant on the kingpins, and add Suzuki's preload shims if the wobble persists.
- Replace the large swivel seal while you're in there.
Tools & part numbers
- Jack and axle stands
- torque wrench
- bearing drift
- gasket sealant
- waterproof grease.
Where to buy the parts
Kingpin Bearings (Koyo) with Swivel Seal Kit (Premium Seal)BigJimny ↗Amazon ↗
KingPin Shim KitBigJimny ↗Amazon ↗
Front Axle Oil SealBigJimny ↗Amazon ↗
Waterproof GreaseBigJimny ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Suzuki Jimny JB23 / JB43 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.