Sline count
Thread Starter
JK Enthusiast
Joined: Jul 2010
Posts: 152
Likes: 0
From: CONCORD, NH
Sline count
I am getting ready to by a set of gears and a locker for my JK Sport. Going to buy an Auburn Ected locker for rear/ 4:88 gears for front and rear. Which ones do I select? spline count?
Ooops Spline count
Ooops Spline count
Last edited by ssgthooligan; Feb 13, 2011 at 01:54 PM.
JK-Forum Founder
Joined: Jul 2006
Posts: 36,534
Likes: 16
From: Laguna Niguel, CA
what he said. of course, since you are installing new lockers, you may or may not want to consider installing a beefier set of axles - say, 35 spline
Thread Starter
JK Enthusiast
Joined: Jul 2010
Posts: 152
Likes: 0
From: CONCORD, NH
Spline count
I want to beef up the front axle to handle the 35's. So I figured do the C gusset up grade with the tubes and 4:88 's for gearing.
For rear add 4:88 and an Auburn Etec locker.
For rear add 4:88 and an Auburn Etec locker.
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
Not sure how much research you have done, but thought this may interest you
And the full thread, if you decide to do a little more 'looking'...
https://www.jk-forum.com/forums/show...ighlight=ected
And one more
https://www.jk-forum.com/forums/show...ighlight=ected
Originally Posted by Dynatrac
The Auburn Ected looks great on paper but the actual function is poor when compared to the others. This unit is based on a clutch driven limited slip design and doesn't truly 'lock'. When 'locked', extra pressure is given to the clutches and it will act locked unless there is enough engine torque and traction to overcome the clutch pressure. Additionally, over time, the clutches will wear and lock up will be even less effective. If that wasn't bad enough, the internal side gear design has very little axle spline engagement in the LSD mode and axle shafts have been getting the splines stripped. Auburn is working on a new Ected model that is said to address these issues.
The Auburn Ected looks great on paper but the actual function is poor when compared to the others. This unit is based on a clutch driven limited slip design and doesn't truly 'lock'. When 'locked', extra pressure is given to the clutches and it will act locked unless there is enough engine torque and traction to overcome the clutch pressure. Additionally, over time, the clutches will wear and lock up will be even less effective. If that wasn't bad enough, the internal side gear design has very little axle spline engagement in the LSD mode and axle shafts have been getting the splines stripped. Auburn is working on a new Ected model that is said to address these issues.
https://www.jk-forum.com/forums/show...ighlight=ected
And one more
Originally Posted by Dynatrac
The Ected is not really a 'locker'. It locks through the clutches can be overcome by too much torque. We've seen these slip when someone is trying to climba ledge. If the clutches wear (which make it slip easier) it can't be rebuilt, only replaced. Auburn has a 4 year warranty where you pay a fee for replacement but after 4 years you're on your own. Do you want to buy a new unit when your clutches wear? Clutch driven LSDs are a bad idea on an off road rig as any free spin of a tire accelerates clutch wear.
Another issue is their side gear design. In the unlocked mode (now LSD) only one side gear is using the full spline engagement. The other side has a 2 piece side gear that, unlocked, only uses about 9/16" of axle spline engagement. They have been having issues with stripping splines off of the axle.
The Ected is not really a 'locker'. It locks through the clutches can be overcome by too much torque. We've seen these slip when someone is trying to climba ledge. If the clutches wear (which make it slip easier) it can't be rebuilt, only replaced. Auburn has a 4 year warranty where you pay a fee for replacement but after 4 years you're on your own. Do you want to buy a new unit when your clutches wear? Clutch driven LSDs are a bad idea on an off road rig as any free spin of a tire accelerates clutch wear.
Another issue is their side gear design. In the unlocked mode (now LSD) only one side gear is using the full spline engagement. The other side has a 2 piece side gear that, unlocked, only uses about 9/16" of axle spline engagement. They have been having issues with stripping splines off of the axle.
Last edited by nthinuf; Feb 13, 2011 at 09:18 PM.
Sponsoring Manufacturer
Joined: Dec 2008
Posts: 1,136
Likes: 4
From: Huntington Beach, CA
Another question you'll have to answer is gear ratios for the carriers. Despite your 4.88 rear gears, you'll need a 3.73 down rear carrier, NOT a 3.92 up. The front will be a standard 3.73 up 27 spline Dana 30 carrier.
As for the Ected..
As for the Ected..
Thread Starter
JK Enthusiast
Joined: Jul 2010
Posts: 152
Likes: 0
From: CONCORD, NH
spline count
Trending Topics
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
Thread Starter
JK Enthusiast
Joined: Jul 2010
Posts: 152
Likes: 0
From: CONCORD, NH
JK Enthusiast
Joined: Nov 2010
Posts: 157
Likes: 0
From: Cedar lake, IN
Originally Posted by nthinuf
Non-rubi
D30 front - 27 spline inner, 32 spline outer
D44 rear - 30 spline
Rubi
D44 front - 30 spline inner, 32 spline outer
D44 rear - 32 spline
D30 front - 27 spline inner, 32 spline outer
D44 rear - 30 spline
Rubi
D44 front - 30 spline inner, 32 spline outer
D44 rear - 32 spline