i am new to this forum and thankful that i found it. i purchased a 1993 tlc with 250k on it from a toyota mechanic in pampa, tx. this guy took very good care of the maintenance on it. the front diff. is leaking gear oil from where the drive line ties to the front diff. i asked the guy about it and he said it has always leaked some but it seems to have gotten worse. it leaves a pretty good puddle after topping off the front diff. mechanic told me he didn't worry about it because it holds 4 qts. should i be concerned? is it an easy fix?
1993 tlc
- Thread starter captain65
- Start date
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pinion seal sounds like. Make sure the shaft has no up/down play. The pinion seal is easy. You get a new one, drop the front part of the shaft, yank the pinion nut, seal, replace, retighten and stake the pinion nut, reinstall driveshaft.
Pretty straight forward and worth doing.
Oh, and if you have the up/down play you need to service the seal and retighten the nut TODAY. If you do not it can cause the pinion to drop into the diff and eat itself. Not good at all.
Pretty straight forward and worth doing.
Oh, and if you have the up/down play you need to service the seal and retighten the nut TODAY. If you do not it can cause the pinion to drop into the diff and eat itself. Not good at all.
This thread has some good photos of the job:
https://forum.ih8mud.com/showthread.php?t=18673&highlight=pinion
https://forum.ih8mud.com/showthread.php?t=18673&highlight=pinion
Huh? That's weird. Could be the diff cover gasket, I guess. That is also a relatively easy fix.
It's also possible it's something further up, like an oil line. I know the oil pressure sensor is right above there and oil leaking from there would drop right down on top of the diff housing.
Did the PO say whether or not the oil level in the diff had ever dropped significantly when he would go to check and fill?
HTH,
- Thread starter
- #8
i pull the filler plug on the diff. and check and nothing runs out. i stick my pinky finger in there and can't get any oil on it. so i added oil until it runs out. it only leaks after i add oil and go drive it and come back and its dripping off the bottom of the diff. seems it quits leaking after it gets low enough. it leaks pretty good after i add the oil.
Yes there is. That's another possibility, though it seems like a lot of oil for that. Also, the breather tube does not terminate directly above the diff housing. Well, you could try extending the breather tube to another location and see if you get oil in the new location. There are plenty of write-ups in the archives for how to do this.
Try re-torquing your diff cover bolts to the factory specs. These often come loose if they've ever been off. If it's the gasket, though, not sure why it would only come out the top of the housing.
Try to clean the breather tube for the front axle. It happened to my '93 also. After I took it out and cleaned it, no more gear oil dripped from the breather tube.
Wow, didn't see that coming. Where did it come from? I didn't see any mention of odd codes in the thread.
-Spike
I would degrease and clean everything VERY well, then see exactly where the leak is coming from.
"Sounds" like it is a gasket, but the breather is possible...the breather is not over the differential however. It is over on the driver's side over the axle tube.
"Sounds" like it is a gasket, but the breather is possible...the breather is not over the differential however. It is over on the driver's side over the axle tube.
He is a newbie- he owns a 93, and if I am correct all 93s did this. If I had just bought a 93 I would want someone to tell me about this defect, wouldnt you?
do you reply to threads to pad your post count Spike? seems like it
Sure, and kudos to you for trying to help out a newbie. But it would be better to put something like this in its own thread. This thread is about a leaking diff housing, not ECU problems. Unless I'm high on something (and I don't think that I am), ECU problems have nothing to do with a leaking diff housing...
