FJ60 rear axle question - Pirate4x4.Com : 4x4 and Off-Road Forum

fj40_rico · 12-19-2004, 10:11 AM

I am toying with the idea of swaping my rear axle for a fj60 axle. my question is what is the gear ratio on them and if they are different? can I just swap the 3rd out of the 40 axle. or the gears.

Thanks for any info.

- Rico.

RustyNailJustin · 12-19-2004, 10:13 AM

60s have 3.73s. your 3rd member will go right into the 60 housing.You realise the 60 is 3 inches wider right?

fj40_rico · 12-19-2004, 10:19 AM

Quote:

Originally Posted by RustyNailJustin

You realise the 60 is 3 inches wider right?

Yep.

Thanks for the info.

- Rico.

tornadoalleycruiser · 12-19-2004, 01:14 PM

Dodge perches, your rear disks wont' work completely, need new brackets. get a IFS hub spacer kit for the front and call it "wide"..

OnTheSpot · 12-20-2004, 01:32 AM

I put a fj60 rear in mine and like it so far. the width is nice.

fj40_rico · 12-20-2004, 07:12 AM

Quote:

Originally Posted by tornadoalleycruiser

Dodge perches, your rear disks wont' work completely, need new brackets. get a IFS hub spacer kit for the front and call it "wide"..

I'm planning on using the fj60 brakes. When you say disc do you mean drums?. I'm not planning on re-using my disc brakes. I'll probably trade the whole axle for the 60.

- Rico.

fj40_rico · 12-20-2004, 07:13 AM

Quote:

Originally Posted by OnTheSpot

the width is nice.

That's the main reason why I want to do it. Also, I need an emergency brake.

- Rico.

tornadoalleycruiser · 12-20-2004, 08:35 AM

Ebrake? Don't you have one on your Tcase?
Options are good.. THe rear disks on an FJ60 rear axle are very similar to the FJ40 stuff but different brackets..
I'm not saying rear drums, I don't have any of those on my trucks.. I meant re-using your rear disks.. But whatever you wanna do is fine.. Options are good!

fj40_rico · 12-20-2004, 09:36 AM

Quote:

Originally Posted by tornadoalleycruiser

Ebrake? Don't you have one on your Tcase?

I've tried to adjust that piece of crap and I can get it to work.

- Rico.

tornadoalleycruiser · 12-20-2004, 09:40 AM

Take it apart, beadblast the inside, re-assemble should work.. Well, till you take off with it engaged!

cruiseroutfit · 12-20-2004, 10:09 AM

Quote:

Originally Posted by fj40_rico

I've tried to adjust that piece of crap and I can get it to work.

- Rico.

What doesn't work about it? It is by far cheaper to keep your current axle and get the T/C brake working (even assuming it needs complete replacing). The 60 swap will require a new pinion flange (or re-drill), new spring pads, shock mounts, brake lines, etc... Not to mention the cable you will need to convert from a dash PB handle to a floor style cable (not sure there is anything off the shelf you can use).

EDIT: Flang will only be needed if you keep the FS 60 3rd

dieselcruiserhead · 12-20-2004, 10:42 AM

Rico it is not hard and actually works great with a floor mount ebrake. But oyu do have to spring for those parts as well. There is a 60 at pick n pull with ebrake and everything, you can probably get everything for $100?

It's also probably easiest to just fix your ebrake though even with the 60 axle, then you don't need to put in the floor mount ebrake...

Rev. Parsley · 12-20-2004, 02:51 PM

What's the difference between a FJ60 axle and an FJ62 axle. I have f & r 1990 FJ62 axles for my 40. I dont really know too much about them except for the width difference. BTW the rear drums with E-brake look like they should be a good setup for me. My stock rear drums and T-case E-brake haven't worked right for years. I never rebuilt them knowing that someday it would all get replaced. I'm actually looking foward to that E-brake.

incogrhino · 12-20-2004, 03:25 PM

Correct me if I am wrong, but I believe the only difference between them is the gearing.The 60's being 3:73 ,the 62's being 4:10.Maybe the sway bars too?I have a set of both but not right here now or I could be more help.

peesalot · 12-20-2004, 03:40 PM

IIRC the 62 has a gusseted housing .

Rev. Parsley · 12-20-2004, 03:53 PM

Quote:

Originally Posted by incogrhino

Correct me if I am wrong, but I believe the only difference between them is the gearing.The 60's being 3:73 ,the 62's being 4:10.Maybe the sway bars too?I have a set of both but not right here now or I could be more help.

That's what I was hoping to hear. Thanks. Anybody else got any more good info for me?

dieselcruiserhead · 12-20-2004, 04:25 PM

The big thing is that the 3rd member is a 4.10 gearing (just like the early models) but that it has the '78 and later stronger fine spline pinion. So it has the benefits of later model 3rd members but because cruisers (both 40s and 60s) switched to 3.73 gearing (much better for the highway on stock tires) in 1979 the amount of fine spline 4.10 third members is very limited other than in 92 models and later. The 62's had them more or less to compensate for the automatic but offer the lower 4.10 gearing better for off road and more power.

Also the front axle is slightly improved, gussetted housing so less prone to bending and the pinons is slightly turned versus a 60 that is at 90 degrees. Ideally I want to put a 62 axle in the front of my 55 with 3rd member and all...

fj40_rico · 12-20-2004, 06:18 PM

Quote:

Originally Posted by cruiseroutfit

What doesn't work about it?

It just won't grab. I've replaced the pads, adjusted it. I did have a bad rear t-case seal leak so I might have to replace the pads again.

The other reason why I wanted the 60 axle was for the extra width, but it sounds like wheel spacers will be cheaper.

- Rico.

dieselcruiserhead · 12-20-2004, 06:37 PM

Probably comparable honestly, plus wheel spacers suck

but I do run then on my DD for what its worth though

dd113 · 12-20-2004, 07:16 PM

Quote:

Originally Posted by fj40_rico

It just won't grab. I've replaced the pads, adjusted it. I did have a bad rear t-case seal leak so I might have to replace the pads again.

The other reason why I wanted the 60 axle was for the extra width, but it sounds like wheel spacers will be cheaper.

- Rico.

Buy new pads, springs, pins etc.... measure the inside of the drum and possibly replace it also. Might need to get a new adjuster. The TC e brake works great and is easy to work on. A full rebuild kit is around $100

fj40_rico · 12-20-2004, 08:03 PM

Quote:

Originally Posted by dieselcruiserhead

Probably comparable honestly, plus wheel spacers suck

but I do run then on my DD for what its worth though

what's better wheel spacers or rims with bigger offsets?

- Rico.

dieselcruiserhead · 12-20-2004, 11:00 PM

Rims and as mentioned somewhere they are about the same price if you get your spacers for $100 (the cheap going rate).

http://www.pirate4x4.com/forum/showt...ighlight=ethan

theferg · 12-21-2004, 01:43 PM

Rico I may have some 15x8s with 2" backspacing up for sale. I'm waiting on a shipment and then I gotta test fit the wheels, but if they don't fit, you have frist dibs if you want 'em...

-Ferg-

woody · 12-21-2004, 01:56 PM

http://www.ih8mud.com/tech/e-brake.php

fj40_rico · 12-21-2004, 06:01 PM

Quote:

Originally Posted by theferg

Rico I may have some 15x8s with 2" backspacing up for sale. I'm waiting on a shipment and then I gotta test fit the wheels, but if they don't fit, you have frist dibs if you want 'em...

-Ferg-

Sign me up. Why wouldn't they fit. Which rims are they? brand?

- Rico.

12-19-2004, 10:11 AM	#1 (permalink)
fj40_rico Something... Join Date: Apr 2003 Member # 18522 Location: Orem, Utah Posts: 753	FJ60 rear axle question I am toying with the idea of swaping my rear axle for a fj60 axle. my question is what is the gear ratio on them and if they are different? can I just swap the 3rd out of the 40 axle. or the gears. Thanks for any info. - Rico. __________________ Rico No Rigs...

12-19-2004, 10:13 AM	#2 (permalink)
RustyNailJustin Moderator Join Date: Dec 2001 Member # 8568 Location: Klamath Falls,OR,Fruita,CO,Montrose,CO, Posts: 7,018	60s have 3.73s. your 3rd member will go right into the 60 housing.You realise the 60 is 3 inches wider right? __________________ 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 Last edited by RustyNailJustin; 12-19-2004 at 10:18 AM.

12-19-2004, 01:14 PM	#4 (permalink)
tornadoalleycruiser Registered User Join Date: Jun 2002 Member # 12451 Location: Kansas City, Mo Posts: 1,245	Dodge perches, your rear disks wont' work completely, need new brackets. get a IFS hub spacer kit for the front and call it "wide".. __________________ Erik FJ45, FJ40, FJ62 TLCA #5303 Secretary

12-20-2004, 01:32 AM	#5 (permalink)
OnTheSpot Rock God Join Date: Aug 2004 Member # 34900 Location: Tucson, AZ Posts: 1,940	I put a fj60 rear in mine and like it so far. the width is nice. __________________ Applying the Beef Treatment

12-20-2004, 08:35 AM	#8 (permalink)
tornadoalleycruiser Registered User Join Date: Jun 2002 Member # 12451 Location: Kansas City, Mo Posts: 1,245	Ebrake? Don't you have one on your Tcase? Options are good.. THe rear disks on an FJ60 rear axle are very similar to the FJ40 stuff but different brackets.. I'm not saying rear drums, I don't have any of those on my trucks.. I meant re-using your rear disks.. But whatever you wanna do is fine.. Options are good! __________________ Erik FJ45, FJ40, FJ62 TLCA #5303 Secretary

12-20-2004, 09:40 AM	#10 (permalink)
tornadoalleycruiser Registered User Join Date: Jun 2002 Member # 12451 Location: Kansas City, Mo Posts: 1,245	Take it apart, beadblast the inside, re-assemble should work.. Well, till you take off with it engaged! __________________ Erik FJ45, FJ40, FJ62 TLCA #5303 Secretary

12-20-2004, 10:42 AM	#12 (permalink)
dieselcruiserhead Registered User Join Date: Jul 2002 Member # 12758 Location: Park City, UT Posts: 4,651	Rico it is not hard and actually works great with a floor mount ebrake. But oyu do have to spring for those parts as well. There is a 60 at pick n pull with ebrake and everything, you can probably get everything for $100? It's also probably easiest to just fix your ebrake though even with the 60 axle, then you don't need to put in the floor mount ebrake...

12-20-2004, 02:51 PM	#13 (permalink)
Rev. Parsley Registered User Join Date: Feb 2000 Member # 161 Location: GHQ Posts: 794	What's the difference between a FJ60 axle and an FJ62 axle. I have f & r 1990 FJ62 axles for my 40. I dont really know too much about them except for the width difference. BTW the rear drums with E-brake look like they should be a good setup for me. My stock rear drums and T-case E-brake haven't worked right for years. I never rebuilt them knowing that someday it would all get replaced. I'm actually looking foward to that E-brake. __________________ 1967 FJ45LV-1972 FJ40-1986 FJ60

12-20-2004, 03:25 PM	#14 (permalink)
incogrhino Registered User Join Date: Dec 2003 Member # 25048 Location: meesheegon Posts: 83	Correct me if I am wrong, but I believe the only difference between them is the gearing.The 60's being 3:73 ,the 62's being 4:10.Maybe the sway bars too?I have a set of both but not right here now or I could be more help.

12-20-2004, 03:40 PM	#15 (permalink)
peesalot Registered User Join Date: Dec 2003 Member # 24859 Location: Where ever my wife says Posts: 4,566	IIRC the 62 has a gusseted housing . __________________ Mellonhead

12-20-2004, 04:25 PM	#17 (permalink)
dieselcruiserhead Registered User Join Date: Jul 2002 Member # 12758 Location: Park City, UT Posts: 4,651	The big thing is that the 3rd member is a 4.10 gearing (just like the early models) but that it has the '78 and later stronger fine spline pinion. So it has the benefits of later model 3rd members but because cruisers (both 40s and 60s) switched to 3.73 gearing (much better for the highway on stock tires) in 1979 the amount of fine spline 4.10 third members is very limited other than in 92 models and later. The 62's had them more or less to compensate for the automatic but offer the lower 4.10 gearing better for off road and more power. Also the front axle is slightly improved, gussetted housing so less prone to bending and the pinons is slightly turned versus a 60 that is at 90 degrees. Ideally I want to put a 62 axle in the front of my 55 with 3rd member and all...

12-20-2004, 06:37 PM	#19 (permalink)
dieselcruiserhead Registered User Join Date: Jul 2002 Member # 12758 Location: Park City, UT Posts: 4,651	Probably comparable honestly, plus wheel spacers suck but I do run then on my DD for what its worth though

12-20-2004, 11:00 PM	#22 (permalink)
dieselcruiserhead Registered User Join Date: Jul 2002 Member # 12758 Location: Park City, UT Posts: 4,651	Rims and as mentioned somewhere they are about the same price if you get your spacers for $100 (the cheap going rate). http://www.pirate4x4.com/forum/showt...ighlight=ethan

12-21-2004, 01:43 PM	#23 (permalink)
theferg Registered User Join Date: Nov 2002 Member # 15144 Location: Wandering the Wild West Posts: 705	Rico I may have some 15x8s with 2" backspacing up for sale. I'm waiting on a shipment and then I gotta test fit the wheels, but if they don't fit, you have frist dibs if you want 'em... -Ferg-

12-21-2004, 01:56 PM	#24 (permalink)
woody Registered User Join Date: Feb 2000 Member # 260 Posts: 4,441	http://www.ih8mud.com/tech/e-brake.php __________________ Brian 'woody' Swearingen - IH8MUD Inc. '74 FJ40, '95 HZJ75, '96 FZJ80, '03 2500 DMax, '09 RZR

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