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Old 11-11-2009, 04:00 PM   #1 (permalink)
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Differential Strength Scale - Toyota, 9", 60, 14 bolt, etc.

Not punching in the right terms to get a good search. Have been hearing about 609 front hybrids - but am more interested in a rear axle right now?

Where does a Ford 9" diff - something along the lines of a custom large bearing Currie unit factor in as compared to other diffs. Advantages - disadvantages? Am following all of the axle build threads and questions - and was wondering if a custom axle with a Ford 9", 35 spline or larger and FF ends would be worth it?

Either looking to go cheap with a 14 bolt with some clearance mods (am already running 39" tires, with 40" MTR's for street duty) - or forego those diamond earrings for the girlfriend and go all out...

I wheel stupid - if that answers how the axle would be used question.
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Old 11-11-2009, 04:07 PM   #2 (permalink)
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IMO go 14. Unless you got bank and are building a custom build. The 14 is cheap, and parts will be available readily.
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Old 11-11-2009, 05:37 PM   #3 (permalink)
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Old 11-12-2009, 07:10 AM   #4 (permalink)
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Wow. Were those gears cryo'd or whats the deal? I know the 9" has the bearing support at the end of the pinion but i still thought you'd shit gears long before killing the 3rd member
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Old 11-12-2009, 08:30 AM   #5 (permalink)
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i'm not sure but they looked cryo'd to me.... jk

that is crazy, i've never seen a 3rd explode like that....... i'd go 14 bolt cuz i'm pretty broke most of the time and that would free up money for other stuff. different width options by changing hubs 63"wms w/dually hubs or 67" w/srw hubs.... jmo




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Wow. Were those gears cryo'd or whats the deal? I know the 9" has the bearing support at the end of the pinion but i still thought you'd shit gears long before killing the 3rd member
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Old 11-12-2009, 09:30 AM   #6 (permalink)
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Was that a nodular 3rd memeber?
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Old 11-12-2009, 09:53 AM   #7 (permalink)
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Was that a nodular 3rd memeber?
I'm willing to bet it isn't.
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Old 11-12-2009, 11:17 AM   #8 (permalink)
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it looks like a stock 3rd..
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Old 11-12-2009, 11:41 AM   #9 (permalink)
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I have a 3rd in a bucket that looks like that. The gears and Detroit held up fine - I wouldn't say a 9" isn't worth looking at, they can be made VERY tough and have lots of after market support.
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Old 11-12-2009, 05:29 PM   #10 (permalink)
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I have a 3rd in a bucket that looks like that. The gears and Detroit held up fine - I wouldn't say a 9" isn't worth looking at, they can be made VERY tough and have lots of after market support.
but at what cost? IMO by the time you replace everything, you should have just started fresh. Kinda like building a dana 300 vs an atlas
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Old 11-12-2009, 05:33 PM   #11 (permalink)
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but at what cost? IMO by the time you replace everything, you should have just started fresh. Kinda like building a dana 300 vs an atlas
Your sure stuck on the atlas. ha ha
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Old 11-13-2009, 11:39 AM   #12 (permalink)
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Your sure stuck on the atlas. ha ha
There is a very good reason for it. Atlas is a great transfer case.
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Old 11-13-2009, 04:59 PM   #13 (permalink)
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Just a stock 9" with a spool, richmond gears, and moser shafts.
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Old 11-14-2009, 04:36 PM   #14 (permalink)
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Yeah - cost is a huge factor, I tend to get sucked in by all the bling axles being developed these days...

That is a wicked sick grenaded rear diff.
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Old 11-14-2009, 10:01 PM   #15 (permalink)
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There is a very good reason for it. Atlas is a great transfer case.
I know the atlas is a great case, I was just givin him shit.
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Old 11-15-2009, 04:01 AM   #16 (permalink)
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Do you guys think you could run the cruiser 9.5 diffs upside down for a rear engine application? I know they will bolt in the housing and run high pinion, but will they oil properly? Was just kinda thinking about a buggy idea with 9.5 diffs & housings and fj80 knuckles.
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Old 11-16-2009, 09:37 PM   #17 (permalink)
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Do you guys think you could run the cruiser 9.5 diffs upside down for a rear engine application? I know they will bolt in the housing and run high pinion, but will they oil properly? Was just kinda thinking about a buggy idea with 9.5 diffs & housings and fj80 knuckles.
Oil is the least of your worries, the direction is the bigger issue
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Old 11-17-2009, 12:27 AM   #18 (permalink)
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What do you mean by direction? I know you have to run the diff's upside down to be able to go forward in forward gears in rear engine application, the question is how does the oiling system in toyota 9.5" chunks work?
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Old 11-17-2009, 05:29 AM   #19 (permalink)
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You will be running on the coast side of the gears, people do it all the time, whether they know it or not.... as almost all front axles were not designed to be front axles and run on the coast side of the gear. I don't see a 9.5" LC diff being stronger than a 9". Personally, I would rank a nodular 9" center higher in strength than a D60, simply due to the extra pinion bearing.
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Old 11-17-2009, 05:43 AM   #20 (permalink)
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Do you guys think you could run the cruiser 9.5 diffs upside down for a rear engine application? I know they will bolt in the housing and run high pinion, but will they oil properly? Was just kinda thinking about a buggy idea with 9.5 diffs & housings and fj80 knuckles.
I've seen pics of how JR modded his 9" diffs to run upside down w/ custom oil slingers. I'd run the Six Shooters instead of the stock FJ80 knuckles if you're stuck on keeping it all LC related . If you're not a purist, I'd do the smart thing & go w/ the D60 outers. That way, if you want to go 35 spline & rebroach the LC 3rd member, you can
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