In this video we show how to install extended differential breathers (front and rear) on a 100 Series Landcruiser. The video best applies to all 100 Series Landcruiser and Lexus LX470 models, though the Terrain Tamer TTDBK kit shown can be used for any four-wheel drive. The exact routes used may vary based on engine and gearbox configuration, as well as any existing modifications on your vehicle.

Jump to Section:
00:00 Introduction
00:49 Tools and Parts
01:42 Installing mounting bracket
02:18 Removing front bash plate
02:43 Removing rear differential breather
03:28 Installing extended rear differential breather
06:34 Removing front differential breather
07:36 Installing extended front differential breather
08:28 Installing differential breather caps
09:33 Reinstating front bash plate
09:46 Outro and Conclusion

Terrain Tamer kit TTDBK comes with everything required to fit the extended breathers: (including instructions)
- 1x mounting bracket
- 2x 1/8in BSP connectors
- 2x 1/8in G Filter
- 4x crimp type clamps
- 10m black hose
- 10x cable ties

Optional parts/consumables purchased separately:
- Extra cable ties (optional)
- 4x 6-16mm stainless steel hose clamps (optional)
- Rubber grease (recommended)
- Paper towels
- M6 x 15mm bolt (optional)

Tools:
Socket set – 10mm, 12mm and 1/4in
Socket wrenches and extensions to suit above sockets
12mm and 14mm spanners
End cutters
Battery drill with no. 2 Phillips bit
Pliers

Recommended Personal Protective Equipment (PPE):
Safety glasses
Gloves

Toyota factory parts being replaced:
Front axle Breather - Toyota 90447-06010 (hose) and 90930-03097 (breather cap)
Rear axle breather – Toyota 43209-60050 or 42306-60140

Disclaimer: At 2nd Gear Low, we love working on cars, but we are not trained mechanics. We like completing maintenance and modifications to all sorts of cars and filming it for your entertainment, but we can’t promise that you won’t harm yourself, someone else, your car or your warranty by trying this. Talk to a qualified mechanic if you are ever unsure about any part of a job that you choose to try yourself.