Symptoms
A sinking pedal, fluid at the firewall, or a clutch that won't fully release.
The fix, step by step
- The FJ25's brake and clutch master cylinders are 1-inch-bore cast-iron units.
- Specter Off-Road lists its FJ25 kits (014-02-FJ25 brake, 018-02-FJ25 clutch) as discontinued, so look for cups of the same bore or have the bores sleeved by a specialist.
- Strip, hone and inspect the bore, fit new cups and seals, and check the cap.
- IH8MUD members found vented caps arrived on early-1960s trucks, and earlier caps may not be vented.
- Bleed both systems with fresh DOT 3.
Tools & part numbers
- Hone
- brake fluid
- flare-nut wrenches
- bleeder kit
Where to buy the parts
FJ25 brake master cylinder kit (014-02-FJ25, listed as discontinued)Specter Off-Road ↗Amazon ↗
FJ25 clutch master cylinder kit (018-02-FJ25, listed as discontinued)Specter Off-Road ↗Amazon ↗
FJ25 clutch slave boot (018-52-FJ25)Specter Off-Road ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Toyota Land Cruiser J20 / J25 (FJ25) 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.