Differential Strength Scale - Toyota, 9", 60, 14 bolt, etc. - Pirate4x4.Com : 4x4 and Off-Road Forum

sputnik40 · 11-11-2009, 04:00 PM

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.

peesalot · 11-11-2009, 04:07 PM

IMO go 14. Unless you got bank and are building a custom build. The 14 is cheap, and parts will be available readily.

RustyNailJustin · 11-11-2009, 05:37 PM

My friend James wheels "Dumb"

[IMG]

[/IMG]

FullsizeYota · 11-12-2009, 07:10 AM

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

rockthedog · 11-12-2009, 08:30 AM

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

Quote:

Originally Posted by FullsizeYota

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

fj40charles · 11-12-2009, 09:30 AM

Was that a nodular 3rd memeber?

dirtchicken · 11-12-2009, 09:53 AM

Quote:

Originally Posted by fj40charles

Was that a nodular 3rd memeber?

I'm willing to bet it isn't.

FullsizeYota · 11-12-2009, 11:17 AM

it looks like a stock 3rd..

KyleQ · 11-12-2009, 11:41 AM

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.

FullsizeYota · 11-12-2009, 05:29 PM

Quote:

Originally Posted by KyleQ

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

J-Ohlin · 11-12-2009, 05:33 PM

Quote:

Originally Posted by FullsizeYota

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

fj40charles · 11-13-2009, 11:39 AM

Quote:

Originally Posted by J-Ohlin

Your sure stuck on the atlas. ha ha

There is a very good reason for it. Atlas is a great transfer case.

RustyNailJustin · 11-13-2009, 04:59 PM

Just a stock 9" with a spool, richmond gears, and moser shafts.

sputnik40 · 11-14-2009, 04:36 PM

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.

J-Ohlin · 11-14-2009, 10:01 PM

Quote:

Originally Posted by fj40charles

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.

Smokehouse · 11-15-2009, 04:01 AM

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.

cruiseroutfit · 11-16-2009, 09:37 PM

Quote:

Originally Posted by Smokehouse

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

Smokehouse · 11-17-2009, 12:27 AM

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?

Wilson · 11-17-2009, 05:29 AM

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.

LC Hamma · 11-17-2009, 05:43 AM

Quote:

Originally Posted by Smokehouse

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

11-11-2009, 04:00 PM	#1 (permalink)
sputnik40 Registered User Join Date: Oct 2007 Member # 100847 Posts: 72	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.

11-11-2009, 04:07 PM	#2 (permalink)
peesalot Registered User Join Date: Dec 2003 Member # 24859 Location: Where ever my wife says Posts: 4,566	IMO go 14. Unless you got bank and are building a custom build. The 14 is cheap, and parts will be available readily. __________________ Mellonhead

11-11-2009, 05:37 PM	#3 (permalink)
RustyNailJustin Moderator Join Date: Dec 2001 Member # 8568 Location: Klamath Falls,OR,Fruita,CO,Montrose,CO, Posts: 7,019	My friend James wheels "Dumb" [IMG][/IMG] __________________ 2012 KOH Team CrossedUp, ADS, Artec, Mike Klensin and Justin Reece. 9TH Place. 2011 LCQ to KOH Team CrossedUp Mike Klensin and Justin Reece. We finished 40th 2010 KOH Team CrossedUp Mike Klensin and Justin Reece. 2009 KOH Team 435 Finished 35th.First Full Frame/Full Body To Finish KOH. TLCA# 5305

11-12-2009, 07:10 AM	#4 (permalink)
FullsizeYota Registered User Join Date: Dec 2003 Member # 24876 Location: Southern Utaarrrr Posts: 1,291	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 __________________ [COLOR="Lime"]'85 Toyota ext cab. 4 cyl. 5.29s. Chromoly birfs. dual cases. hi-steer. OBA. front ARB. rear welded. cage.[/COLOR]

11-12-2009, 09:30 AM	#6 (permalink)
fj40charles Zeus of the Sluice Join Date: Oct 2000 Member # 1926 Location: Dallas, TX USA Posts: 3,254	Was that a nodular 3rd memeber? __________________ '69 FJ40 with very few stock parts. 2000 Cummins with some goodies to make it smoke..... Trail Gear's Bad Ethics=Bad Business.

11-12-2009, 11:17 AM	#8 (permalink)
FullsizeYota Registered User Join Date: Dec 2003 Member # 24876 Location: Southern Utaarrrr Posts: 1,291	it looks like a stock 3rd.. __________________ [COLOR="Lime"]'85 Toyota ext cab. 4 cyl. 5.29s. Chromoly birfs. dual cases. hi-steer. OBA. front ARB. rear welded. cage.[/COLOR]

11-12-2009, 11:41 AM	#9 (permalink)
KyleQ Rock God Join Date: Dec 2006 Member # 83837 Location: Minnesota Posts: 1,575	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. __________________ 74' Bronco - Mustang Injected 5.8 - 105:1- Locked D60/70HD - NP435 -Atlas2 3.8 - PSC Full Hydro - 5.5" lift - Cage Arms - 37" Cut & Grooved Boggers Bronco Build Thread Last edited by KyleQ; 11-12-2009 at 11:43 AM.

11-13-2009, 04:59 PM	#13 (permalink)
RustyNailJustin Moderator Join Date: Dec 2001 Member # 8568 Location: Klamath Falls,OR,Fruita,CO,Montrose,CO, Posts: 7,019	Just a stock 9" with a spool, richmond gears, and moser shafts. __________________ 2012 KOH Team CrossedUp, ADS, Artec, Mike Klensin and Justin Reece. 9TH Place. 2011 LCQ to KOH Team CrossedUp Mike Klensin and Justin Reece. We finished 40th 2010 KOH Team CrossedUp Mike Klensin and Justin Reece. 2009 KOH Team 435 Finished 35th.First Full Frame/Full Body To Finish KOH. TLCA# 5305

11-14-2009, 04:36 PM	#14 (permalink)
sputnik40 Registered User Join Date: Oct 2007 Member # 100847 Posts: 72	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.

11-15-2009, 04:01 AM	#16 (permalink)
Smokehouse Registered User Join Date: Apr 2007 Member # 89922 Location: Las Vegas New Mexico Posts: 284	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.

11-17-2009, 12:27 AM	#18 (permalink)
Smokehouse Registered User Join Date: Apr 2007 Member # 89922 Location: Las Vegas New Mexico Posts: 284	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?

11-17-2009, 05:29 AM	#19 (permalink)
Wilson Registered User Join Date: Sep 2001 Member # 7233 Location: Paradise, CA Posts: 17,082	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. __________________ [COLOR=Red][SIZE=4]ECV 7-11[/SIZE][/COLOR] Serving up a Tsunami of Swagger

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode