Terrain Tamer rear axle seals 78 series
Submitted: Saturday, Apr 26, 2025 at 16:43
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Member - lyndon NT
Hi All
Just rebuilding the rear hubs on my 78 series cruiser. Due to grease bypass previously, I am trying the new Terrain Tamer seals.
Part number 90311-6200HD
I've just emailed the following to Terrain Tamer, but just wondering if anyone here already knows the answer?
Cheers
Lyndon
Hi
I have just purchased rear seals for my axle. part number. 90311-62001HD
My understanding is that these seals rotate within themselves,not on the axle itself, is this correct?
If so, should they be installed on a dry axle with no grease between the seal and the axle itself?
The reason for the question is that it would seem that the seal would most likely just rotate on the axle itself should it be greased.
Thanks for your help.
Regards
Lyndon
Reply By: RMD - Saturday, Apr 26, 2025 at 17:12
Saturday, Apr 26, 2025 at 17:12
Lyndon
If it is a HUB seal IT DOES NOT RUN ON THE AXLE. ONLY runs on the AXLE TUBE! The axle runs inside that with it's own thin sela which leaks if bearings are loose and flood oil onto the grease and exits through the HUB to AXLE TUBE SEAL AREA! Terrian sela might run SEAL on SEAL inside themselves. Never seen one!
AnswerID:
647832
Follow Up By: Member - lyndon NT - Saturday, Apr 26, 2025 at 17:18
Saturday, Apr 26, 2025 at 17:18
ah, yes, the axle tube. correct. On the sauce?
FollowupID:
928935
Reply By: Bob Y. - Qld - Sunday, Apr 27, 2025 at 17:09
Sunday, Apr 27, 2025 at 17:09
Sounds like a similar principle to the seals on heavy trailers, eg road trains, semis etc.
The inner face press fits on the stub axle, and the outer part fits in the hub. The seal rotates within these 2 faces, providing excellent sealing in harsh conditions
No longer at work, otherwise I coutld provide a photo.
Bob
AnswerID:
647839
Follow Up By: maurice b - Sunday, Apr 27, 2025 at 17:38
Sunday, Apr 27, 2025 at 17:38
That is correct Bob. A lot of Crusier owners are using that particular seal to run there rear wheel bearing on floating axles model crusiers in an oil bath rather than grease . This easy mod has been very successful by just removing the axle seal and adding extra oil to the dif til it flows thru to tha bearings @ + 500mls This can even work using the genuine Toyoto hub seal. However the Terain Tamer HD seal gives you added sealing capabilities.
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Follow Up By: Bob Y. - Qld - Monday, Apr 28, 2025 at 07:48
Monday, Apr 28, 2025 at 07:48
Sounds like the go, Joe?
In T’ville for yet another scan.
Bob
FollowupID:
928943
Reply By: Pawan Y - Monday, Apr 28, 2025 at 16:00
Monday, Apr 28, 2025 at 16:00
Hey Lyndon, it sounds like you're tackling a common issue with the 78 series cruisers! Regarding those Terrain Tamer rear axle seals (part number 90311-62001HD), your understanding about them rotating within themselves, rather than directly on the axle, is likely correct. Given this design, it's generally recommended to install them on a clean, dry axle. Applying grease between the seal and the axle could indeed cause the seal to spin on the axle surface, defeating the purpose of the improved sealing. Hopefully, Terrain Tamer gets back to you soon with confirmation, but going dry seems to be the consensus for this type of seal. Good luck with the rebuild!
Thanks
AnswerID:
647845