I'm getting mixed info on which transmission my 1992 JDM (RHD) Land Cruiser has. The engine compartment plate says A440F while the filter and solenoids are for the A442F. Would Toyota put an A442F in a cruiser yet stamp A440F on the info plate?
Do I have an A440F or A442F? (1 Viewer)
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Isn't the A440F fully hydraulic and the A442F has the solenoids? Is there an OD button on the shifter?
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Yes, it has an OD button on the shifter and solenoids.
JDM A440F vs Non Electronic A442F
forum.ih8mud.com
see this discussion. apparently some 7o's had a VIN saying 440 but had 442's installed. Sounds like you have a 442F electronic version. That's a good thing.
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Thanks for that! I assume if I have an ECT button, it's the electronic version. I've been dealing with overheating of the transmission for the last few months and thought if I changed out the solenoids it might help.JDM A440F vs Non Electronic A442F
see this discussion. apparently some 7o's had a VIN saying 440 but had 442's installed. Sounds like you have a 442F electronic version. That's a good thing.
If it's shifting normally the solenoids are probably OK. Don't think that would cause overheating. Check on MUD for overheating issues. The first thing is to assume a the trans cooler is not doing it's job.
JDM A440F vs Non Electronic A442F
see this discussion. apparently some 7o's had a VIN saying 440 but had 442's installed. Sounds like you have a 442F electronic version. That's a good thing.
Have one of these oddballs too. Frame # says its an A440, but it's certainly an A442. OD, ECT, solenoids, no sign of a swap. @Blomdala has one as well and found reference in the book, "70 Series - The Worlds Workhorse". Reports that there may be some minor differences in castings from our early ones to when they are officially the 442. Totes a good thing.
I should say Japanese mind is wired differently from American one. Japanese mind is much more flexible in terms of numbers.
Both of A440F and A442F transmissions can be hydraulically or electronically controlled. It depends of date of manufacture, vehicle application and some optional equipment.
So, transmission family number like 440 or 442 can not be used for the purpose above. What can be used is Toyota transmission part number. And those are where Japanese flexibility comes to play: there are dozen of those part numbers for the transmission A440F, and perhaps two dozens for A442F.
By another words if your plate says that your vehicle equipped with A440F and O/DD and ECT, that means you have A440F electronically controlled one.
If your plate says A442F (it can be HDJ81 pre-92) and you got no O/D, neither ECT, that means you have hydralically controlled one.
Also, those trans may have ratios variations - so, again, different part numbers. Oh, that smart Japanese engineeeeeers!
Both of A440F and A442F transmissions can be hydraulically or electronically controlled. It depends of date of manufacture, vehicle application and some optional equipment.
So, transmission family number like 440 or 442 can not be used for the purpose above. What can be used is Toyota transmission part number. And those are where Japanese flexibility comes to play: there are dozen of those part numbers for the transmission A440F, and perhaps two dozens for A442F.
By another words if your plate says that your vehicle equipped with A440F and O/DD and ECT, that means you have A440F electronically controlled one.
If your plate says A442F (it can be HDJ81 pre-92) and you got no O/D, neither ECT, that means you have hydralically controlled one.
Also, those trans may have ratios variations - so, again, different part numbers. Oh, that smart Japanese engineeeeeers!
So I have a 1992 HDJ80, plate says it has A442F, I bought a new filter (strainer) to suit.
Once I removed the oil pan I soon discovered that the filter was completely different… after some quick research I determined my wagon must have a A440F!
Did Toyota produce the vehicle with that box.. I don’t think so.. my assumption is someone changed the box at some point in the last 30+ years
Part number for A440F filter 35303-60010
Once I removed the oil pan I soon discovered that the filter was completely different… after some quick research I determined my wagon must have a A440F!
Did Toyota produce the vehicle with that box.. I don’t think so.. my assumption is someone changed the box at some point in the last 30+ years
Part number for A440F filter 35303-60010
Squash
SILVER Star
Having rebuilt a truly hydraulic A442f transmission i feel your heat issue.
We drive the unit based on a proper tranny heat gauge.
That said ensure that your internal rad cooler functions, and add a big transmission cooler.
The hdj81 performs very well until you have to kick down on steep mountain inclines.
The extra cooling helps....otherwise Wholesale automatic out of Australia and probably others offer solutions.
Worst-case is you drop down to Low range and 4th, you do not want to burn the oil.
Seems like our transmissions only lock in 4th/D.
We drive the unit based on a proper tranny heat gauge.
That said ensure that your internal rad cooler functions, and add a big transmission cooler.
The hdj81 performs very well until you have to kick down on steep mountain inclines.
The extra cooling helps....otherwise Wholesale automatic out of Australia and probably others offer solutions.
Worst-case is you drop down to Low range and 4th, you do not want to burn the oil.
Seems like our transmissions only lock in 4th/D.
Your vehicle 1992 HDJ80 obviously have what it says: factory installed A442F.
Both of transmissions A440F and A442F installed on all Toyota vehicles produced from 01.1990 to 08. 1992. are fully hydraulic and have no electronically controlled automatic shifting and equipped with oil strainer part# 35303-60010.
Both of transmissions A440F and A442F (besides some special application) installed on all Toyota vehicles produced from 09.1992 to 01.1998 equipped with electronically controlled automatic shifting and have same strainer part# 35330-60010
In Japan year and month of vehicle manufacture basically identified by the time of first registration. You should have a copy of Japanese original title where you can find this date of first registration and consider it as a manufacturing date of your vehicle. This will help you to identify correct part numbers for your vehicle.
Those particular oil strainer part numbers are so similar, that can be confused easily.
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Ah sweet thanks for this info and teaching me something.
So it’s just the 442 Hydraulic in my car. Is it worth upgrading to a 442 Electronic or would it be too much hassle for very little difference in drivability?
Ben
Ben,
It is all depends on what you are looking for.
Generally, hydraulic version is more prone, but less economical compare with electronically controlled version.
Also, now hydraulic version became quite rare and more valuable for those looking for converting their vehicle into the overlanding gladiator.
Market price of hydraulic transmission today is twice higher over its electronic sister.
Try to identify your transfer case, if it may accept bigger wheels.
Keep your machine as stock as possible, you are going to be glad you did.
