Oil in the Transmission/Differentials/T-Case - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 06-02-2003, 07:06 PM
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Oil in the Transmission/Differentials/T-Case

I have located my trasnmission, however what I assume is the 'Oil fill' plug, is kind of facing sideways/down. How am I supposed to pour oil in this hole?

Also, The hole I think is the Oil level check, is smaller than the fill and drain holes and faces sideways, is this correct? And if so, the socket to open these oil holes are square. What kind of tool do I need to open this?

And finally, I hear people talking about what kind of oil they have in their Transmission, Differentials and T-Case. How would I go about checking/changing the oil in the Differentials/T-Case? This is not specified in the manual...

Thanks for your help.
Tegan. [img]images/graemlins/thud.gif[/img]
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post #2 of (permalink) Old 06-02-2003, 07:24 PM
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Re: Oil in the Transmission/Differentials/T-Case

First off , welcome to the board . Second, what are you working on ?
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post #3 of (permalink) Old 06-02-2003, 07:41 PM
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Re: Oil in the Transmission/Differentials/T-Case

My car is a 1989 Suzuki Sierra. It is my first manual car, and I have only had it 4 weeks.

I have *limited* (to say the least) mechanical knowledge, I only started to check it out yesterday. The gear box or transmission is leaking oil, so I wanna check that out. All I've done so far is drain, flush and change the radiator coolant, cuz the resovoir tank was like mud, and clean the air filter.
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post #4 of (permalink) Old 06-02-2003, 08:00 PM
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Re: Oil in the Transmission/Differentials/T-Case

At the rear of the transmission there should be a plug about 2/3 of the way to the top . That is the check plug , the gear oil should be level with that hole . To fill it , it's a lot easier to pull the shifter boot and handle and remove the stick assembly by removing the top 3 bolts . Be cautious about the bolt that is in the rear of the tower as it is a locating pin , and they sometimes get worn down and break off . This is what causes the shift pattern to be sloppy, so that bolt should be replaced if it's worn badly or broken . For your temp/climate you would use 75w/90 synthetic gear oil , available at most auto parts shops . Hope this helps,
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post #5 of (permalink) Old 06-02-2003, 08:18 PM
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Re: Oil in the Transmission/Differentials/T-Case

Ok, then how would change the oil in the t-case and differentials?
post #6 of (permalink) Old 06-02-2003, 08:25 PM
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Re: Oil in the Transmission/Differentials/T-Case

There are plugs to drain them and check plugs in the axles and tcase . Most of the tcase plugs are in the side towards the input shaft area , or left side of the vehicle . Just look for a square headed plug , should be about 1/2 way up the side of the case . Same oil as the trans....
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post #7 of (permalink) Old 06-02-2003, 09:47 PM
 
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Re: Oil in the Transmission/Differentials/T-Case

To get the plugs out, just use a 3/8" drive ratchet.
I use a screwdriver and scrape out all the dirt first, but they still round off too easily.
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