Terrain Tamer Heavy Duty hub seals: anyone use them yet?

[MissahPapaJ]

How reliable do you think they'd be on US-market, full-time 80s regularly doing freeway speeds? Are they used in tractors on high-speed (relatively) shafts?

Any idea what they're called in the seal industry?

This design of seals have been used for over a decade on GM 25-3500 ( ford too if memory serves ) rear diff full floaters I’ve changed 3 in the last 10 years usually one side go’s bad some time the customer wants to do one side sometimes both. The design makes sense you’re essentially making the wear item the seal itself and not the surfaces of the spindle or axle.

 

[bjowett]

These seal designs are excellent, even Toyota has them for certain applications. I’ll surely look into them for future rebuilds.

Genuine Koyo front unit bearings for the 200 Series, along with the lighter 120/150 chassis vehicles, utilize a similar, what I like to call convoluted, seal design. The OEM NSK bearings that come on the Tacoma and Tundra do not have them, or any real seal for that matter. They depend on the ABS sensor ring. NSK vs Koyo.

None of the rear bearings have a decent seal, they look like the NSK… though in that case, it’s to keep the grease in. Ever wonder why the rear bearings on the Tundra and 200 eventually go out? The grease leaves the party. Look at that, 100k and all pushed right out of the bearing. No solution for this one, yet. Now go buy some seals!

 

[orangefj45]

Does anyone make anything like this for the inner axle seal?

I have a chronic leak on one side (possible almost imperceptibly tweaked housing) and I feel like this cassette style would do wonders there. Or for anyone with a groove on the shaft there.

Thanks!

Are you asking about a FF rear inner axle seal?

Georg @ Terrain Tamer

 

[CaptBeardilocks]

Are you asking about a FF rear inner axle seal?

Georg @ Terrain Tamer

Sorry I was unclear and obviously slightly off topic for this thread. Lol.

I was talking about Front Inner Axle Seal. I have one chronically leaky side.

 

[orangefj45]

Sorry I was unclear and obviously slightly off topic for this thread. Lol.

I was talking about Front Inner Axle Seal. I have one chronically leaky side.

Yes, Terrain Tamer is the only vendor who offers a double-lip HD front inner axle seal.

Part number 90310-35005HD and in stock all all branches worldwide, including our branch in Northern California.
209-714-4210

Georg

 

[Kernal]

LInk to front axle seal thread:

Post in thread '80 Series Front Inner Axle Seal Comparison'

Jul 11, 2025

Those look really cool. Especially for the rears.

But what I'm talking about here are the inner AXLE seal. Not in the inner HUB seal. Different animal.

Unless I'm missing something.

• CaptBeardilocks

 

[orangefj45]

LInk to front axle seal thread:

Post in thread '80 Series Front Inner Axle Seal Comparison'

Jul 11, 2025

Those look really cool. Especially for the rears.

But what I'm talking about here are the inner AXLE seal. Not in the inner HUB seal. Different animal.

Unless I'm missing something.

• CaptBeardilocks

Are you looking for front inner axle seals, or rear FF inner axle seals?