I can't find a speedometer gear for an automatic 4wd Tercel.
I called a Toyota dealer and have looked at a 4wd 5spd wagon, a 2wd 5spd and a 2wd automatic.
It appears the 4wd auto has a unique speedometer driven gear.
The one from the 4wd automatic has a longer shaft than the other three types I looked at (and a 21 tooth gear)
I replaced the damaged 21 gear with a 20 gear from a 2wd automatic.
I had to carve away the plastic to get access to the end of the shaft, applied penetrating oil for a couple hours and then pressed the gear off.
The shaft is knurled where the nylon gear mounts and it was still a tight fit after pressing the 20 gear off and onto the longer shaft.
Still looking for the correct 21-tooth driven gear, but now I have some time.
Does the Corolla speedo gear fit the Terc tranny? Seems like a lot of the these parts are interchangable. Eventhough it is 2wd vs 4wd I figured the suggestion to at least look in to it might help.
Good luck on getting this figuered out.
I just got really lucky today a bought a running parts car for myself with a good MT which will be nice to have. My trans only has 30k on a complete rebuild so I don't anticipate needing one anytime soon but at least I will have a spare.
Peace
1985 Tercel 4wd SR5 Wagon, WEBER Carb, Brown (TURTCEL)
1988 Corolla DLX All-Trac Wagon, 4 speed AT, Silver (Wife's new car)
1993 Ford Escort Wagon LX, 5 Speed, Smurf Blue (Smurfette)...selling
I did some searches and it seems 75-79 manual trans Corollas had 21 tooth gears.
But I don't know they used the same nylon-gear-on-steel-shaft configuration.
If they did, I would measure the diameter and press it off the shaft.
I doubt that the long shaft used on the 4wd automatic Tercel was used anywhere else, because every other Tercel I've looked at used the same shorter shaft.
There was a 78 corolla up in Arlington a month or two ago, but it's gone.
when toyota makes a new model of car they look at their current parts inventory and see what is suitable for use on the new car. If is very costly to make up new detail parts for each model of car, so many parts are the same, or almost identical across the various models, even if they have different part numbers. That is why when one part number runs out they have a "superseded" part number, it is a similar part from another model of car.
I would make sure which gear is supposed to be in your car Tercle, on a car this old is is possible someone in the past installed the wrong one. I am surprised there are this many different number of gear teeth available, but they like go with the differential ratio since I am fairly certain all of the speedos are the same and interchangeable.
I doubt someone put the wrong gear in my 4wd automatic, because the gears from two different 2wd autos, a 2wd 5spd and a 4wd SR5 won't fit.
The 4wd automatic uses a driven gear with a longer shaft, the top one in the first picture.
All other Tercels tested so far have the shorter metal shaft.
xirdneh wrote:I looked thru my mess of tranny parts and found (4) 20's, (1) 19 and (2) 22's
i have one more place to look
I found a 22 in an SR5. Do you know where the 19 came from?
Are all your tranny parts Tercel?
Do you know how long Toyota used the plastic gear on metal shaft (instead of one-piece plastic)?
Because some 2002-2006 Camry automatics use a 21 gear.
Some 92-93 Celicas and MR2s also.
(Using search term N=21)
Petros wrote:when toyota makes a new model of car they look at their current parts inventory and see what is suitable for use on the new car.
all trannys came out of tercels
i think the 19 was from a hatchback
the rest were early and late 4wd's
i have an automatic and i will pull the speedo thing out soon to see what it is
Love those Tercell 4x4 wagons but they sure suffer from road noise.
xirdneh wrote:its a 4wd automatic
not sure what year
the gear ratio in differential is 3.73
this is really weird. tercel4wdrules has mentioned before that apparently all north american automatic t4s had a final drive gear ratio of 3.909, and the 3.73 (aka 3.727) was only on japanese automatic t4s which were produced until sometime around '84. another guy mentioned on here a while back that his automatic was a 3.73 though, so i'm really not sure which is correct.
This is interesting. I wonder if the '84 automatic T4WDs have 3.73 final drive instead of the 3.909 as noted in the '85 FSM. There was a special A55F service manual that was an addition to the '84 FSM, but I have not bought a copy to see what final drive ratio the early A55F transaxles in North America where equipped with.
2015 Honda Fit EX "Malachi"
2001 Toyota Corolla CE "Eugene"
