4runner Gearbox whine. Oil or bearings?

Submitted: Thursday, Feb 21, 2008 at 21:20
ThreadID: 54798 Views:1816 Replies:5 FollowUps:1
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G'day all, I've just purchased a 95 RV6 4runner with 240000kms in reasonably good condition, although the gearbox has a whinney sort of sound. I'm confident it is the gearbox as it doesn't happen in nuetral, clutch engaged nor 4th gear (1:1 I believe). So my question is, Should I replace the oil with top quality oil and what type of oil is best suited to that box? Or should i pull the thing out and get it overhauled? Any opinions and advice are greatly appreciated.
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Reply By: Bearded Fish - Thursday, Feb 21, 2008 at 21:25

Thursday, Feb 21, 2008 at 21:25
It will be the front gearbox bearing get it fixed they don't get better with new oil
AnswerID: 288710

Reply By: Member - Phil G (SA) - Thursday, Feb 21, 2008 at 21:29

Thursday, Feb 21, 2008 at 21:29
I agree, get it fixed. If you put thicker 85/140 oil in, the box may become a little quieter, but the gear changes are a lot slower.
AnswerID: 288713

Reply By: howesy - Thursday, Feb 21, 2008 at 21:32

Thursday, Feb 21, 2008 at 21:32
Some of the full synthetics have addatives as well which can help a little.
Transmax Z is not cheap but a real corker for the hilux gearbox and gives smooother changes. lux's like a real thin oil.
AnswerID: 288715

Follow Up By: howesy - Thursday, Feb 21, 2008 at 21:35

Thursday, Feb 21, 2008 at 21:35
otherwise a hand full of banana peels and no female passengers = no whining,
Just kidding girls dont tell my mrs.
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FollowupID: 554051

Reply By: Tony - Thursday, Feb 21, 2008 at 21:52

Thursday, Feb 21, 2008 at 21:52
If your got wine in the diff, take it to Redfern in Sydney. It will be fixed by morning haha.
AnswerID: 288723

Reply By: sam_84h - Thursday, Feb 21, 2008 at 22:05

Thursday, Feb 21, 2008 at 22:05
thank you all for your responses, the wealth of the info and the speed it is given on this site is astounding!
AnswerID: 288731

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