Sourcing transmission parts for LJ78

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jemdiggity

jemdiggity

Joined
Dec 8, 2021
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My transmission died on the highway while my wife was on a 5 hour drive to pick up her family from the airport!
I'm actually based in Japan but the garage says that they can't source replacement parts. Maybe the Aussies are buying them all up?

It's a 1991 Prado LJ78W with 2L-TE engine and R151F transmission.
The garage says the input shaft (33301-35050) & counter gear (33421-35130) are no good (teeth gone?)
They tried to find used parts in Japan, but I have a feeling the forum users might have a better way of sourcing parts.

Any tips on finding replacement parts or advice is very welcome.
Thanks in advance.

DSC_0532.jpg
 
A couple years ago I bought some parts from 'Cobra Transmission' and had them delivered to Malta (EU). Was a smooth transaction and the parts were good quality.

Toyota R150, R151 Transmission Kits | Cobra Transmission

Standard Transmission Rebuild Kits and Parts for Toyota R150, R151. Cobra Transmission Parts specializes in providing high quality transmission parts and kits.
cobratransmission.com cobratransmission.com
 
if that came apart like that I would recommend getting a complete good used unit and throwing everything else in the scrap.
 
jemdiggity said:
My transmission died on the highway while my wife was on a 5 hour drive to pick up her family from the airport!
I'm actually based in Japan but the garage says that they can't source replacement parts. Maybe the Aussies are buying them all up?

It's a 1991 Prado LJ78W with 2L-TE engine and R151F transmission.
The garage says the input shaft (33301-35050) & counter gear (33421-35130) are no good (teeth gone?)
They tried to find used parts in Japan, but I have a feeling the forum users might have a better way of sourcing parts.

Any tips on finding replacement parts or advice is very welcome.
Thanks in advance.

View attachment 3826393
Click to expand...
Call Dave @ Japan4x4 Export Service - http://export.japan4x4.com/

If the parts are available and in Japan, he will find them. Often these older part numbers are superseded by newer replacements.
 
malteser said:
A couple years ago I bought some parts from 'Cobra Transmission' and had them delivered to Malta (EU). Was a smooth transaction and the parts were good quality.

Toyota R150, R151 Transmission Kits | Cobra Transmission

Standard Transmission Rebuild Kits and Parts for Toyota R150, R151. Cobra Transmission Parts specializes in providing high quality transmission parts and kits.
cobratransmission.com cobratransmission.com
Click to expand...
Thanks. I’ll measure the parts today and see if they have a replacement
 
the counter gear looks like it has heat damage and the input shaft is almost smooth where there’s supposed to be gears.

IMG_2490.jpeg


IMG_2491.jpeg
 
As @cruisermatt said your best bet will be to find a good used transmission and replace the whole thing. Are you sure yours is an R151f and not an R150f? I'm pretty sure the LJ78 came with the 150 and the KZJ78 used the 151. Either transmission would work (given the correct year range and transfer case setup) but the 151 has a lower 1st and 2nd gear ratio.
 
That was run without oil for awhile. Scrap it all and replace the entire unit.
 
AirheadNut said:
As @cruisermatt said your best bet will be to find a good used transmission and replace the whole thing. Are you sure yours is an R151f and not an R150f? I'm pretty sure the LJ78 came with the 150 and the KZJ78 used the 151. Either transmission would work (given the correct year range and transfer case setup) but the 151 has a lower 1st and 2nd gear ratio.
Click to expand...
Thanks. The manufacturer name plate identifies the transmission as R151F (pic attached).

How can I be sure an old R151F or R150F will fit? Do I just check that it had the exact same input shaft part number?

These are the models that used the same input shaft (33301-35050):

Are there other models with a compatible transmission that didn’t use 33301-35050?
It has a 28 mm OD, 21 splines, and is 220 mm long.

Any tips on what to search for are welcome!!

IMG_3600.jpeg
 
The input shaft part number you posted also crosses over to 4Runner, T-100, and Toyota pickups through 1995-- at least here in the US. In Japan, they cross-over to a number of JDM specific models.

A transmission from one of them might work with a transfer over of the transfer case adaptor.
 
Just when you think you know something about what options were offered on a LandCruiser, one turns up to prove you wrong! I never knew the LJ78 was offered with the R151f, that must have changed sometime in 1991. Makes me wonder if yours still has the 4.88 diffs or if it uses the 4.30 ratio like the KZJ78.
 
OGBeno said:
The input shaft part number you posted also crosses over to 4Runner, T-100, and Toyota pickups through 1995-- at least here in the US. In Japan, they cross-over to a number of JDM specific models.

A transmission from one of them might work with a transfer over of the transfer case adaptor.
Click to expand...
I would second this. Almost certain that any 1995 or earlier R150f or R151f from any of the above models of 4Runner, Hilux Surf, T100, Pickup, etc will work with some mixing and matching of parts, primarily the transfer adapter and output shaft.
 
I found an old transmission on ebay.
www.ebay.com

TOYOTA TACOMA HILUX SURF 2.4L TURBO DIESEL MANUAL TRANSMISSION 4X4 MT 2L-TE 2L | eBay

TOYOTA HILUX 2L-TE TURBO DIESE 4X4 MT TRANSMISSION 2.4L 2L-T 2L 4RUNNER. MT TRANSMISSION ONLY. Not under warranty All internal engine parts including: pistons, piston rings, piston pins, crankshaft and main bearings, connecting rods and rod bearings, camshaft and camshaft bearings, timing chain...
www.ebay.com

Seller isn't sure what vehicle it came out of ¯\_(ツ)_/¯ but it does say that it's for 2L-TE engine.
The obvious difference is that the front drive shifter is in a different position.
On my LJ78, the front drive shifter is forward and to the right of the stick.

I **think** I can get this and maybe my transfer case will fit on it.

Any advice is very welcome !!

IMG_2488.jpeg
 
You should be able to disassemble the transfer case and transmission and separate them at the intermediate plate (the steel plate between the transmission and transfer adapter) and reassemble with your current transfer adapter, transfer case and output shaft adapter.
 
AirheadNut said:
You should be able to disassemble the transfer case and transmission and separate them at the intermediate plate (the steel plate between the transmission and transfer adapter) and reassemble with your current transfer adapter, transfer case and output shaft adapter.
Click to expand...
Awesome. Thanks!
 
Eurasiaoverland said:
I've no idea what the used parts scene in Japan is like, but I recently used these guys: New & Used Japanese Car Spare Parts Online - BE FORWARD Auto Parts - https://autoparts.beforward.jp/ to get a couple of alternators. They were amazingly slow to prepare my order but otherwise I can only say good things, used parts were in near perfect condition and the price was similar to what I would pay for used items in the US or Europe which would need rebuilding as a given.
Click to expand...
I have a feeling all the used parts here are exported. Japanese people tend to like new cars.
It's been easier to find a transmission on US ebay than locally in Japan.
 
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