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R32 Gtr Gearbox Problems.

Spudnic
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Spudnic Enthusiast

Spudnic

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Alright, so i dumped the oil from my gearbox the other day and filled her back up with the correct amount of oil through "THE GEARBOX LEAVER" thinking that this gearbox would work the same way as any other gearbox i have serviced. Anyway so i out it back together and start driving home, by the time i got there there was oil all the way down underneath my car and on my exhaust. Found the problem being the gearbox leaver boot, so i replaced that and topped it back up with oil, this time through the top lug on the side of the gearbox, this was more of a quick job so i found the best oil i could for a midnight on Tuesday and put her in(happened to be multitrax).

I wasnt to happy with this oil so i bought some new stuff today and replaced it again through the leaver, problem is when i go to check the level from under the car i cant get it, and the oil seems to be sitting in a gallery on the top part of the gearbox, or the transfer case.

For though who know rb26dett gearbox's you will realise they have a chain system and a oil pump inside of them, my question and i couldn't find the answer through all the reading i have done, is the main gearbox and the transfer case connected and run the same oil? or are they different galleries? I really need some help on this! my car is sitting up on jacks.. sad.gif

cheers jake.

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SteveL Mentor

SteveL

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Posted (edited)
is the main gearbox and the transfer case connected and run the same oil?

No (in terms of oil usage) and no.

The transfer case uses ATF and the gearbox uses.....gearbox oil. The shift lever bolts to and connects inside the transfer case in the GTR gearbox. So when you filled the 'gearbox' through the shift lever hole, you actually only filled the transfer case....and it would have been waaaaaaay overfilled, thus the cause of the leaks, not to mention using the wrong oil.

In fact, the filler plug for the gearbox is on it's side, accessed from the underneath the car. For the transfer case, the filler plug is at the back of the case and also accessed from below.

Suggest you get hold of a workshop manual.

Edited by SteveL

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