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Hilux diff placement

Tech talk for Hilux

Moderators: toaddog, Elmo, DUDELUX

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Hilux diff placement

Post by tomsoffroad »

Still building this bloody 3link in the back of my old surf and was wondering... Is there any reason why the diff has to sit straight up and down like it was with the leaves? The only reason I can think of is to lubricate the pinion bearings. If I can lay it back abit wouldn't it take abit of stress out of the uni?
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Post by spazbot »

yeah its best to rotate the pinion to point towards the transfer case
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Post by Reddo »

and to put a little bit more oil in the diff, because as you rotate it further away from the oils normal leavel, some bearing etc mightn't get the right amount of oil and sieze up
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Post by slosh »

How do u put more oil in? Park truck with nose down steep hill?
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Post by Guy »

Drill and tap a new fill plug hole .. Its not all that hard ..
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Post by Reddo »

just mind where you drill, might his something important, LOL
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Post by Guy »

Preferably you would do this with the diff centre removed so you can remove any swarf tha the drill creates ..
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Post by spazbot »

to addextra oil i either park on a hill or poor it in through the diff breather hole
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Post by Reddo »

love_mud wrote:Preferably you would do this with the diff centre removed so you can remove any swarf tha the drill creates ..


is that why both my diffs make a grinding noise :lol: :lol:

oh well, it's a 40 - she'll live forever ;)
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Post by Guy »

Just like grandads axe ...
" If governments are involved in the covering up the knowledge of aliens, Then they are doing a much better job of it than they do of everything else "
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Pal
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Re: Hilux diff placement

Post by Pal »

tomsoffroad wrote:Still building this bloody 3link in the back of my old surf and was wondering... Is there any reason why the diff has to sit straight up and down like it was with the leaves? The only reason I can think of is to lubricate the pinion bearings. If I can lay it back abit wouldn't it take abit of stress out of the uni?


Might throw tail shaft out of balance if uni joint flanges are not aligned to counter balance at each end.
Keep it simple
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Post by tomsoffroad »

Was talking Supasurf the other night - nasty looking toy - he was telling me that unis work best when they are on a slight angle.
One other thing tha caught my eye is the fact that the rear uni is my first line of defence for the rear diff, has anyone sussed out a way to protect it?[/img][/url][/quote]
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Post by ausyota »

If you run a double cardan joint on the rear shaft the the diff should be angled up to point at the box.
If you run just single uni on both ends of the tailshaft the diff needs to be parralel to the box.
Paul.
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