Dana 30, 35, 40, 60 - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Tech Forums > General Jeep Discussion

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 10-11-2012, 08:00 AM   #1
Jeeper

WF Supporting Member
 
Ltblue's Avatar
 
Join Date: Oct 2011
Location: NYC
Posts: 1,015
Dana 30, 35, 40, 60

Could someone explain what the difference is between all of them?

Ltblue is offline   Quote Quick Reply
Old 10-11-2012, 09:32 AM   #2
Jeeper
 
derf's Avatar
 
Join Date: Oct 2012
Location: Cedar Rapids, IA
Posts: 992
Dana 30 is a light duty front axle used in Jeeps. It's strong enough to handle daily street use and light off roading. It can be upgraded but only so far.

Dana 35 is a rear axle that started life as the AMC 15. It was used in AMC passenger cars into the 80s. It also was used as a rear axle in the YJ and TJ wranglers. It too is a light duty axle like the Dana 30. It can be upgraded but only so far.

There is no dana 40. You're thinking of the Dana 44. It's a medium duty axle that has been used as both a front and rear axle over the years.

As a front axle, it was used in 1/2 and 3/4 ton pickup trucks made by every domestic truck manufacturer at one time or another. The Rubicon model Wrangler uses a hybrid axle that takes some parts from a Dana 44 and some from the Dana 30. The 44 is a good solid axle with a long history. It's a common upgrade for Jeeps to give you the ability to handle much larger tires.

As a rear axle, the Dana 44 was used in 1/2 ton pickups by almost every domestic manufacturer at one point or another. It was the standard rear axle for a little while in the CJ series of Jeeps when they weren't using the AMC20 in the 70's and early 80's. It was an option on the TJ wrangler and standard on the LJ. It's the standard rear axle on the JK. It also has a long history of being a rear axle for a number of RWD passenger cars. It's a strong axle (within reason) that has an incredible number of parts and upgrades available for it.

The Dana 60 is a heavier duty axle that is used as both a front and rear axle. As a front axle, it is used in 3/4 ton diesel applicaitons as well as being basically standard in the 1 ton pickups. As a rear axle it has been used in 3/4 ton pickups and a few 1 ton pickups. Though 1 ton pickups will typically use an even bigger and stronger rear axle. The Dana 60 was also used by Dodge in the 60's muscle cars to handle the torque of the Hemi and 440. It is a big axle that can handle a lot of power and weight.

__________________
2012 JK - 3.6/NSG370/NP241/D30/D44 - Grimm Jeeper
1986 J10 - 360/700R4/NP208/D44HD/D60FF - Truck Norris
1984 CJ7 - 5.3/4L60E/Atlas 4spd/D44/9" - Work In Progress

My gear ratio calculator
derf is offline   Quote Quick Reply
Old 10-11-2012, 03:21 PM   #3
Jeeper

WF Supporting Member
 
Ltblue's Avatar
 
Join Date: Oct 2011
Location: NYC
Posts: 1,015
Nice explanation derf.. yeah sorry I meant Dana 44


Ltblue is offline   Quote Quick Reply
Old 10-11-2012, 03:25 PM   #4
Sponsoring Vendor
 
Ibuildembig's Avatar
 
Join Date: Aug 2010
Location: Fruitland, Missouri
Posts: 8,259
Nice writeup derf....

The only thing I can add is a 60 front and a 60 rear have nothing in common other than the carrier name. The rear is barely stronger than a 9 inch ford, but the front is about as strong as it gets as far as factory ones go. I could write 14 paragraphs about the differences in 60's lol
Ibuildembig is offline   Quote Quick Reply
Old 10-11-2012, 03:32 PM   #5
Jeeper

WF Supporting Member
 
Ltblue's Avatar
 
Join Date: Oct 2011
Location: NYC
Posts: 1,015
yeah there are quite a few people that said they want(or wish they had) Dana 60 both front and rear axles but I didn't know why. At least now I understand why they would want it.
Ltblue is offline   Quote Quick Reply
Old 10-11-2012, 03:37 PM   #6
Sponsoring Vendor
 
Ibuildembig's Avatar
 
Join Date: Aug 2010
Location: Fruitland, Missouri
Posts: 8,259
Yeah IMO a 60 rear is a paperweight....I have thrown at least 40 of them away in my life. But a 60 front.....make me happy
Ibuildembig is offline   Quote Quick Reply
Old 10-11-2012, 03:45 PM   #7
Jeeper

WF Supporting Member
 
Ltblue's Avatar
 
Join Date: Oct 2011
Location: NYC
Posts: 1,015
so that would mean your tires are enormous lol nice
Ltblue is offline   Quote Quick Reply
Old 10-12-2012, 10:58 AM   #8
Jeeper
 
derf's Avatar
 
Join Date: Oct 2012
Location: Cedar Rapids, IA
Posts: 992
Quote:
Originally Posted by Ibuildembig View Post
Nice writeup derf....

The only thing I can add is a 60 front and a 60 rear have nothing in common other than the carrier name. The rear is barely stronger than a 9 inch ford, but the front is about as strong as it gets as far as factory ones go. I could write 14 paragraphs about the differences in 60's lol
Yeah, I oversimplified things to fit it into a chapter worth of text. If I start getting into the details people's eyes glaze over.

Quote:
Originally Posted by Ibuildembig View Post
Yeah IMO a 60 rear is a paperweight....I have thrown at least 40 of them away in my life. But a 60 front.....make me happy
It's still a step up from the AMC20 that I pulled out from under my J10. While the FSJ AMC20 is heavier duty than the CJ version, the full float D60 out of a J20 is a step up, especially when you do the disc brake conversion using the ElDorado calipers. And when you're towing a CJ on a trailer, it never hurts to have as much as you can in the brakes. I also swapped in the front D44 to match the 8 lug pattern and I was able to swap in the Chevy JB7 heavy duty front brakes onto it at the same time. That J10 really likes to stop when I tell it to now.
__________________
2012 JK - 3.6/NSG370/NP241/D30/D44 - Grimm Jeeper
1986 J10 - 360/700R4/NP208/D44HD/D60FF - Truck Norris
1984 CJ7 - 5.3/4L60E/Atlas 4spd/D44/9" - Work In Progress

My gear ratio calculator
derf is offline   Quote Quick Reply
Old 10-12-2012, 12:44 PM   #9
Full Size Jeep Dr.

WF Supporting Member
 
lindel's Avatar
 
Join Date: Nov 2011
Location: The land of Salted Iron
Posts: 1,761
Hiya Mr Grimm!
__________________
His: 1999 Flame Red TJ, With a few mods...

Hers: 1987 Grand Wagoneer, stock w/Falken Wildpeak ATs
lindel is offline   Quote Quick Reply
Old 10-12-2012, 07:59 PM   #10
Jeeper
 
Join Date: Sep 2010
Location: Mass
Posts: 607
Dana 41 in some Willys Jeeps

Dana 25front axle, *Dana 27 closed knukles non disc brakes *Some Jeeps and Scouts used them as the rear also.
__________________
RubiconRich (7th Jeep)PatriotJeepers,Inc
86 CJ7,T18,TC146,Dana 44's,lockers 35",8274,OBA
05 TJ Rubicon,Superwinch,OBA
51 M100 1/4 trailer
RubiconRich is offline   Quote Quick Reply
Old 10-14-2012, 01:20 PM   #11
Jeeper
 
derf's Avatar
 
Join Date: Oct 2012
Location: Cedar Rapids, IA
Posts: 992
Quote:
Originally Posted by lindel View Post
Hiya Mr Grimm!
Oh man! They'll let anyone in here...
__________________
2012 JK - 3.6/NSG370/NP241/D30/D44 - Grimm Jeeper
1986 J10 - 360/700R4/NP208/D44HD/D60FF - Truck Norris
1984 CJ7 - 5.3/4L60E/Atlas 4spd/D44/9" - Work In Progress

My gear ratio calculator
derf is offline   Quote Quick Reply
Old 10-14-2012, 03:19 PM   #12
Full Size Jeep Dr.

WF Supporting Member
 
lindel's Avatar
 
Join Date: Nov 2011
Location: The land of Salted Iron
Posts: 1,761
I found a window cracked open in the back...
__________________
His: 1999 Flame Red TJ, With a few mods...

Hers: 1987 Grand Wagoneer, stock w/Falken Wildpeak ATs
lindel is offline   Quote Quick Reply
Old 10-15-2012, 09:34 AM   #13
Jeeper
 
derf's Avatar
 
Join Date: Oct 2012
Location: Cedar Rapids, IA
Posts: 992
Quote:
Originally Posted by lindel View Post
I found a window cracked open in the back...
Cool. Thanks for leaving it open for me.

__________________
2012 JK - 3.6/NSG370/NP241/D30/D44 - Grimm Jeeper
1986 J10 - 360/700R4/NP208/D44HD/D60FF - Truck Norris
1984 CJ7 - 5.3/4L60E/Atlas 4spd/D44/9" - Work In Progress

My gear ratio calculator
derf is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 04:22 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC