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2nd Gen 4runner Rear Diff Extension

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Old 09-02-2010, 03:06 PM
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2nd Gen 4runner Rear Diff Extension

Decided to get off my butt and do this. haven't done the front yet, just taking a break. but did this today... if you have any questions on how I mounted it, dont be afraid to ask...














This is a Video


Last edited by MaK92-4RnR; 09-02-2010 at 03:09 PM.
Old 09-02-2010, 03:21 PM
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That's cool.


It's helpful to many that wanna follow your lead if you post the pics and part #'s of the stuff you used...

When I swap something out, or change/ modify a part, I try to add the part # in my thread...



Some guys run them to a vac port on the engine... lol, I can't think of one on the V6... But there should be one.
Old 09-02-2010, 03:30 PM
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i'll finish it up later... still doing the the front one.
Old 09-05-2010, 04:04 PM
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yeah looks good mak. deffs would like to know more on how its done im sure i could figure it out but it would be nice to walk out of the store with the correct parts lmao
Old 09-05-2010, 04:28 PM
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Hard to tell from the pics but you don't want any droops or low points in hose cause if you have an incident where oil goes up the hose past that point it will stay there and not drain back down and build up pressure. Does that make sense?

Old 09-06-2010, 09:32 AM
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Originally Posted by waskillywabbit
Hard to tell from the pics but you don't want any droops or low points in hose cause if you have an incident where oil goes up the hose past that point it will stay there and not drain back down and build up pressure. Does that make sense?

yeah, im gonna fix it here in few. I dont want it wrapping through the frame.
Old 09-06-2010, 11:00 AM
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can you not run it up next to the gas tank filler neck?

i haven't decided where to run mine on the 4runner, but i'm gonna do the front one here soon, since i just got my motor back in lol
Old 09-06-2010, 11:14 AM
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Originally Posted by camo31"10.50"
can you not run it up next to the gas tank filler neck?
Yup. Thats where mine is routed to.
Old 09-06-2010, 11:21 AM
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I've got a question; what exactly is this mod for? I mean, what exactly does this do for the rear diff? Not being smart...just don't know.
Old 09-06-2010, 11:41 AM
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I ran mine into my tail light... it looks cool and its unique

michael1963 - The stock axle breather gets clogged and causes overheating/leaking. when you extend it to an air tight area, it no longer causes issues.
Old 09-06-2010, 11:45 AM
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funny my buddies nissan has long diff breathers stock? i was like uh thats cool lol
Old 09-06-2010, 12:54 PM
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I thought these were called diff breathers? But diff extension is cool, too. I like to make up names for mods that have already been named.

Last edited by BigBluePile; 09-06-2010 at 01:05 PM.
Old 09-06-2010, 01:07 PM
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Originally Posted by MaK92-4RnR
I ran mine into my tail light... it looks cool and its unique

michael1963 - The stock axle breather gets clogged and causes overheating/leaking. when you extend it to an air tight area, it no longer causes issues.

BTW, I think 4Crawler beat you to that "unique" location......

Old 09-06-2010, 01:20 PM
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diff breather extension... technically, you have a diff breather. but you're making it longer...

and im aware of where he put his. i've never seen it done on a 2nd gen. if you'd like to go "search" for a 2nd gen to prove me wrong, by all means, go for it
Old 09-06-2010, 01:21 PM
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Originally Posted by MaK92-4RnR
I ran mine into my tail light... it looks cool and its unique

michael1963 - The stock axle breather gets clogged and causes overheating/leaking. when you extend it to an air tight area, it no longer causes issues.
Alright then, thanks for clearing that up...I just couldn't figure out what that was all about.
Old 09-06-2010, 01:24 PM
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Originally Posted by MaK92-4RnR
diff breather extension... technically, you have a diff breather. but you're making it longer...

and im aware of where he put his. i've never seen it done on a 2nd gen. if you'd like to go "search" for a 2nd gen to prove me wrong, by all means, go for it
No thanks, I'm good for searching. I have my diff pulled installing a front locker. Hows them 4.88's?
Old 09-06-2010, 01:25 PM
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Originally Posted by BigBluePile
No thanks, I'm good for searching. I have my diff pulled installing a front locker. Hows them 4.88's?
I dont know what hes talking about, installing 4.88s, i already have those and a 5speed... them and 31's they are bang'n!
Old 09-06-2010, 01:25 PM
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hehehe. bird, you dork.
Old 09-06-2010, 02:46 PM
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Originally Posted by BigBluePile
No thanks, I'm good for searching. I have my diff pulled installing a front locker. Hows them 4.88's?
I haven't installed the 4.88s or the aussies yet... still waiting for the aussies to get here.
Old 03-21-2012, 12:29 PM
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Okay, okay, so if you havent done this mod yet, then do it today before you end up like me with a leaking seal.

Did the mod prior to installing a new rear-end 6 months ago and yesterday noticed a spin spray of <swear-word> lucas scented oil on the inside of my drivers side rear tire!

Of course the diff breather was caked with mud and clogged! How could I have put this off leaving the $20 peice of tygon tubing pushed up above my spare?? The breather nipple got unknowingly discarded with my old unattainable rear-end.

The seal is cheap, but what a waste!!!.. of an afternoon. Does anyone have the part number or old link to the thread with the part number for the breather nipple? Thought it was a 4-crawler part?



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