Extended Differential Breathers - Toyota Landcruiser 70/80/105 Series

In this video we show how to install extended differential breathers (front and rear) on an 80 Series Landcruiser. The video best applies to all 70/80/105 Series Landcruisers, 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
01:07 Tools and Parts
01:54 Installing mounting bracket
02:26 Removing rear differential breather
02:58 Installing rear differential breather
05:49 Removing front differential breather
06:49 Installing front differential breather
08:45 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
Tools:
Socket set - 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
Recommended Personal Protective Equipment (PPE):
Safety glasses
Gloves
Toyota factory parts being replaced:
Front axle Breather - Toyota 43290-60010
Rear axle breather - Toyota 43209-60050
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.

[@guitar14]

Please never stop making videos on the 80 series. By far the best instructional videos on KZbin. Cheers mate.

[@2ndGearLow]

Thank you Chris!! Plenty more to come on the 80 Series. We really appreciate your kind feedback

[@laughingachilles]

Your videos are without question the best tutorials I have ever seen.

[@2ndGearLow]

Thank you! We put a lot of work into the videos so we really appreciate your kind feedback

[@captainunderdog]

Awesome videos. Your explanations are precise and thorough. Great editing and clear shots. Wish I could upvote your vids more than once, they are great. Really enjoying the 80 series videos.

[@2ndGearLow]

Thanks for the feedback Peter, that's exactly what we are going for. Be sure to keep an eye out for more content coming soon!

[@virginiacruiser.7989]

As always, great instructional content. Very helpful and easy to follow. Gives us non mechanics the confidence to wrench on our rigs.

[@2ndGearLow]

Thank you very much! We appreciate your support

[@noodz2777]

Best instructional videos ever!! Keep em coming!

[@2ndGearLow]

Thanks mate!

[@kuzavs]

Absolute legend!!! Thank you a lot, all the way from Europe, Lithuania.!!!

[@2ndGearLow]

Thank you very much from Western Australia!!

[@Dfalo18]

Awesome video mate!! keep them coming on the 80 series 👌👌.

[@2ndGearLow]

Thanks Dwayne, appreciate you watching and commenting! Plenty more to come on the 80s

[@51KTM51Hurricane]

Yez please. bought recently one, a Fzj80 he is now back from fighten the rust. Now he is back @home and I'm loving it to making him ready for the apocalypse Thank you for your Videos!!!

[@51KTM51Hurricane]

Thank you for your videos bought recently one, a Fzj80 he is now back from fighten the rust. Now he is back home and I'm loving it to making him ready for the apokalypse Thank you for your Videos!!!

[@2ndGearLow]

Nice one mate, welcome to the team! Thanks for watching and we hope it goes well

[@Ghostrider-71]

What an excellent video. So informative. I will do this job eventually on my HDJ81. Hopefully I can find a terrain tamer kit here in the US. Thanks again for posting.

[@2ndGearLow]

Thank you! We're glad you enjoyed the video and hope it all goes smoothly on your 80

[@user-wb5hg5cy9l]

Great videos,thanks👍👍👍👍

[@2ndGearLow]

Thanks for watching Pavel, we appreciate your comment!

[@g_unit6773]

👍🇺🇸👊 Excellent tutorial, thank you!

[@2ndGearLow]

Thanks for the feedback!

[@RanDomRikM]

Not sure if it has been mentioned already. Before fitting the new diff breather kit, unscrew the barbs from the axle and run a small drill down them as they are often blocked with up to 30 years of gunge, then refit. This will allow the diffs to vent freely as the temps inside rise and fall.

[@2ndGearLow]

Hi mate, thanks for watching. Not a bad tip - best to make sure they're clear while you're there.

[@nicholaschip5820]

Hi, thanks for the video, very helpful. Do you know if the manual gearbox on an 80 series diesel 24 valve has a breather? Or the transfer box perhaps?

[@fatmanoverlanding]

Great work. Nicely done and so timely, as I just got a diff breather kit (SaaS) - it comes with 4 breathers. In addition to both diffs, I'll also do the gearbox/transfer case (plus optional for the winch if I had one). Any reason you decided against fitting one on the gearbox?

[@2ndGearLow]

Thanks for watching! Great question, this particular kit only comes with 2 port breathers and that's quite common. I find that the diff breathers are in a bit more compromising position from the factory, given the angle you sometimes enter/leave the bogholes at, so treated them as a bit higher priority. I had also found the rear breather was clogged previously, as shown by air hissing out when opening the filler plug, likely from a mud hole. That being said, we might do a video on the transmission and transfer case breathers in future, probably another 2-port set-up so they're all separate. Certainly worth doing all 4 for peace of mind

[@samjohnson9894]

@@2ndGearLow Yes I was wondering about those 2 breathers too. I know I'm late to the party but please do a video on those as well.

[@CherokeeChief.]

Those are already much higher than most newer Toyotas stick😂 crazy they stopped doing the slightly extended hose line and just put a breather sticking directly off the diff by itself… wow

[@grantsimmons453]

Any chance u can look at or show how to put breathers on a automatic gear box

[@2ndGearLow]

Hi Grant, thanks for the suggestion. You're not the first to ask for this and we have it on the list for a future video! Cheers

[@stevencolverd]

Can you do a video on extensions for the transfer case and auto transmission as well for the 80 series?

[@2ndGearLow]

Thanks for watching Steven, we have this on our list for future videos

[@user-zu5ky7zw2v]

🤝приветствует. А почему вы сделали из шлангов после Сапунов кольцо?

[@2ndGearLow]

Hi, the loop in the hose is to allow extra length for the car to move up and down with the suspension travel without pulling the end of the hose off the axle housing

[@user-zu5ky7zw2v]

Спасибо !

[@gregmorris4914]

Where did you get your Toyota oil filter socket

[@2ndGearLow]

Hi Greg, thanks for watching. The Toyota oil filter wrench SST 0922807502 was bought from Partsouq.com. the Ryco RST219 is very similar, but not quite as tight fitting as the Toyota one

[@johnrommelt6560]

Do you use loctite or teflon tape?

[@2ndGearLow]

Hi John, no we did not use loctite or teflon tape. The barb fittings shown in the video are designed to create a seal with the tube, and the threaded connection between the breather and the breather (M) and threaded end (F) of the barb does not require thread tape to serve its purpose. This is a very low pressure system, and the breathers are intentionally located above any areas where water could enter