Help identify part

Can't seem to find this in my assembly diagrams. This is on the 1991 LH107G with the 3L. Hoping to get a part number or diagram so I can do the repair

Mechanical speedometer drive old school.

Hello both and ‘Bullwinkle’, welcome to the Forum. Great name!

I’ll bow to JT69’s knowledge, but it sure looks like a speedo cable. Seems like on yours the housing has had a knock so this might be more than ‘just’ a cable swap.

I’ll deal with that first.

If you have to change the cable, I think it’s fairly involved. I’ve not done a cable swap but it runs along the RH chassis rail under the driver’s seat. Places where the ‘sun don’t shine’ then loops up somewhere around the radiator to the instrument cluster. The cable is contained on the Electronics Parts Catalogue with the meters (instruments). On mine, it’s:

https://toyota.epc-data.com/regius_ace/lh119v/114894/electric/8301/

Then scroll down (a lot) to Scheme 17! This shows the right-angle version of coupler. Is this yours?

I have the curved variant. This link is for my LH119 van. Modify this for your ‘LH107-xxxxx’ based on your build plate (under LH front seat).

If the cable is fine, which it might well be and I started writing the bit above before I looked properly at the pictures and links it might ‘just’ be where this goes into the transmission and this is where you do need to decode your build plate as this will list your transmission code, which you can decipher on the Hiacesoutheast web site. There are loads of useful resources there, too. These include decent repair manuals and the best electrical manual I’ve seen.

On mine a manual the speedometer driver gear is here:

https://toyota.epc-data.com/regius_ace/lh119v/114894/electric/8301/

You need your transmission code and head into the EPC with the correct option to work out what’s what. As there are a seemingly a couple of threads on the casing part you might be able to metal repair the bits. This might depend on what’s left inside the screw cap. Can the lost bit be reattached or not? Another repair option might be to cut a deeper thread on the casting so it screws onto a new bit though you might need to modify the innards of the coupler. If this is half decent and might hold then wrap the whole lot in self-amalgamating tape or some sort of potting compound for long term support and waterproofing.

I’m unfamiliar with the auto boxes but into the mix I think you need to factor what the lines that come into the casing do and whether you can open this up (good clean first) and remove it. Repair will be easier off the vehicle and this is the route if it’s a replace…

Good luck and

HTH

Thank you so much!!! This is all very helpful. The cable it's seems fine. Even the pin connecting the joint to the casing is okay. This seems to me like a non-essential component so I'm guessing it's okay to drive the thing for now unless there's cause for concern there. Other than not having a functioning speedometer.

Good day Bullwinkle.
I had the same rig for last 7 years or so (now have a Dyna quad cab LY280 4WD 5sp with a 5L).
On my LH107G that speedo cable input connection is driven at the same transfer case point. The funny little thing between the speedo cable and transfer case speedo output spline is actually an oil type pump which recirculates power steering fluid back to the power steering pump. The faster you go, the more that feedback loop cuts out power steering to the point where the power steering pump basically does no work. This of course is because you really only need power steering at low speeds. The reason this is important is because it seems unique to the JDM rigs. Therefor the part is hard to find and must be sourced out of Japan. I may have an exploded diagram and some part numbers at home. If you send me an email address I can scan and send you those part numbers. I think I found the info originally on one of the Japanese part suppliers websites. If that little power steering feedback recirculation loop pump seal fails, it sends power steering fluid all the way up the speedo cable housing and leaks out of the back of the instrument cluster right onto your foot. Ask me how I know? (-: Cheers, Roman