Symptoms
Oil running down the back of the transfer box, contaminated transmission handbrake.
The fix, step by step
- Confirm the source first: on an LT230 the intermediate shaft is a common leak.
- Drop the propshaft, remove the rear flange nut and flange (can be done in situ), tap off the dust cap, replace the rear seal and felt washer, then refit with a new M20 nyloc nut and fresh flange bolts torqued to spec.
Tools & part numbers
- Large socket for M20 nut, flange holding tool, seal driver
- rear output seal, felt washer, nyloc nut
Where to buy the parts
LT230 output flange, nut and dust shieldRovers North ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Land Rover 90 / 110 / Defender 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.