w56, easy seals to change?

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J

jessnbrianfj40

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My tranny imploded on my 85 4runner the other day. I've got my replacement on jackstands to clean up and was wondering what easy seals gaskets to change without too much dissassembly.

Also, the replacement is from a parts truck that was well maintained, but if I grab the input shaft, it will pull out about a quarter of an inch. It shifts fine through the gears on the bench and turns well, but the one that junked out won't pull out at all. Any thoughts? Thanks!
 
Might be worth it to go ahead and change the input and output seals. As for the play in the input... it probably shouldn't have any. It might still be ok.
 
Thanks for the reply. Ill go ahead and change those out. When I mentioned the shaft, there isn't any side to side or up and down play, but when I pull it straight out, the shaft and bearing slide out maybe and eight to quarter inch. Ill hope for the best.

Is the seal that is behind where the driveshaft meets the tcase easy to replace while its out?

Sorry for all the questions
 
There are front and rear output seals you could change. They are relatively easy to do. I checked the repair manual and it doesn't give any specs on free play. It basically says that if there is anything wrong with the trans to remove it and rebuild or repair it. How many miles were on the donor truck?
 
You will need a 30mm socket to get the stake nuts off the F&R output shafts. If you have a strong impact gun you can spin the nuts off, otherwise you will need to make a tool to hold the flange so you can get those nuts off. I made one out of a 2' long piece of angle steel, I use driveshaft bolts to hold it on. Besides new seals, you need to get new stake nuts.

The front seal is very different than the rear one, it has a weird felt donut that goes under it. I only use Toyota OEM seals, they are worth the expense.

Make sure to put a little smear of RTV on the splines of the shafts before you put the flanges back on. Keeps gear lube from leaking up thru the center of the flange and around the nut. Marlin developed and promotes this technique.
 
Personally, I would take this a step further. Since you know nothing about the transmission, I would crack the case open and replace the easy bearings. I'm trying to remember, but I think you can get away with the input and output and call it a day. Very easy from what I recall.
 
pappy said:
Personally, I would take this a step further. Since you know nothing about the transmission, I would crack the case open and replace the easy bearings. I'm trying to remember, but I think you can get away with the input and output and call it a day. Very easy from what I recall.
Click to expand...


That seems like sound advice to me.
It's easier to do bearings and seals now with the tranny out, then to eat the tranny later on down the road.
 
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