Is your transfer case leaking at the speedometer cable?

Joined
Dec 25, 2010
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771
Location
Camas, WA/Portland
The transfer case in my 1hdt/H55 converted Fj62 started to drip from the speedometer housing. I finally got sick of the drips on my garage floor so I did a little research and ordered the needed parts. This is good for any cruiser with a split TC.

I tackled it this morning and the entire process took 20 minutes or less. I’d put up a thread with some part numbers and such to help out anyone with this same leak.

While ordering the inner seal and outer O ring, I saw Toyota also offered the whole speedo “ “sleeve” also. It was only about $20 so I ordered one of those also. The two ways to do this is to:
1. Order the complete sleeve part #33404-30040.
2. Use the old sleeve and replace the inner seal part #90310-09001 and outer O ring part #90301-18004.
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Don’t let this leak intimidate you, even if your a rookie, it’s a 1/2 banana job a most. The most time consuming process was the drain and refill of gear oil. Especially if you buy the complete sleeve Toyota 33404-30040. It comes with both the inner seal and the outer O ring already installed. Here is the new next to the old one.
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Hard to tell from the pic, but the old inner seal is worn, leaving the hole slightly larger, causing the gear oil to slowly leak.

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Slide the speedo gear into the new sleeve. I smeared a little gear oil on the outer O ring. Guide it in so the gears mesh up. It takes a little push to seat the sleeve with the new O ring. Then reinstall the retainer tab and 12mm bolt. Thread the speedometer cable back on.

Refill the transfer case with 2.1 liters of gear oil and your done.

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