The truth about the Eaton TruTrac - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

TheInfamouSS · 09-19-2017, 03:23 PM

I have yet to come to a conclusive answer through all of my searching. I am leaning towards just getting a ZL1 diff/axles and an upgraded driveshaft for my car. Going to be going forced induction and looking at around 650 hp to start off with.

Is the Eaton TruTrac just more or less a Posi style bandaid for my 1LE differential or can it actually hold some power?

mydreamcar · 09-19-2017, 06:25 PM

Quote:

Originally Posted by TheInfamouSS

I have yet to come to a conclusive answer through all of my searching. I am leaning towards just getting a ZL1 diff/axles and an upgraded driveshaft for my car. Going to be going forced induction and looking at around 650 hp to start off with.

Is the Eaton TruTrac just more or less a Posi style bandaid for my 1LE differential or can it actually hold some power?

You should check with ted at janetty racing, they should be able to answer your question. While I am not FI, I seem to recall speaking with ted about the possibility of going with a sc down the road and him saying no issues,

cc-rider · 09-19-2017, 06:51 PM

I've done a lot of research on this before buying. For what it's worth...I went with the ZL1 diff. But the trutrac has a decent reputation of holding some power. But not nearly to the point of the ZL1 diff. The ZL1 has proven to be damn near bulletproof. They are serious diffs. What swayed me on my decision is that it's not just the diff. You need axles too. Then while your in there...why not the driveshaft. It all starts to stack up. And the ZL1 diff swap (axles and all) has GM engineering around it. Proven. Available used or even brand new as a kit for a decent price. It just makes sense to go with it. The second the ZL1 kit came out...it took the market over.

The disadvantage...it's heavy. About 70 lbs more. But...that's why it's strong.

All that being said...people have gotten away pounding on their stock SS drivetrain forever too. But at 650 hp...the risk of failure goes up significantly for the stock system. The Trutrac no doubt improves that. But then you need the axles too for sure. Start stacking it up from a cost basis and see where it all ends up.

TheInfamouSS · 09-19-2017, 08:57 PM

Quote:

Originally Posted by cc-rider

I've done a lot of research on this before buying. For what it's worth...I went with the ZL1 diff. But the trutrac has a decent reputation of holding some power. But not nearly to the point of the ZL1 diff. The ZL1 has proven to be damn near bulletproof. They are serious diffs. What swayed me on my decision is that it's not just the diff. You need axles too. Then while your in there...why not the driveshaft. It all starts to stack up. And the ZL1 diff swap (axles and all) has GM engineering around it. Proven. Available used or even brand new as a kit for a decent price. It just makes sense to go with it. The second the ZL1 kit came out...it took the market over.

The disadvantage...it's heavy. About 70 lbs more. But...that's why it's strong.

All that being said...people have gotten away pounding on their stock SS drivetrain forever too. But at 650 hp...the risk of failure goes up significantly for the stock system. The Trutrac no doubt improves that. But then you need the axles too for sure. Start stacking it up from a cost basis and see where it all ends up.

This is why I am pretty set on the ZL1 rear. AGP twin turbo kit w/Meth will be installed after I beef up my drivetrain, and the only thing that will be limiting me to go up from there is the zl1 fuel pump. After that its just the bottom end that will be holding me back.

I am actually planning on getting zl1 rear diff (used), new zl1 axles, and a one piece driveshaft (as well as all the necessary odds and ends needed to complete it). I was really just interested on how well this TruTrac would hold up, but I figure I should just go with my gut feeling (which is also why Im going with AGP instead of the ECS kit I started swaying towards).

Thanks for the feedback

olblue75 · 09-21-2017, 01:58 PM

Look at the Z28 diff it has Torsen locker/Posi and it holds up very.

hammdo · 09-21-2017, 02:45 PM

I have the Eaton -- very much like the Z/28 -- helical driven and does a great job on the road course -- specifically why I chose it. Had the JRE posimod-- was not for a road course...

Can't go wrong on the ZL1 setup -- thought it is heavy...

I also added the LPW cover to mine as well as Hendrix Delrin offset diff bushings... axles, drive shaft, solid subframe bushings etc. you'd still need to do some bushing updates even to the ZL1 cradle...

Overall very happy with my setup.. FI, 746 RWHP 794 RWTQ on E85, just had it out to the road course on 9/19... fun!

-Don

09-19-2017, 03:23 PM	#1
TheInfamouSS @LS.ACE Drives: 2014 Chevy Camaro 2SS/1LE Join Date: Jan 2017 Location: North Jersey Posts: 296	The truth about the Eaton TruTrac I have yet to come to a conclusive answer through all of my searching. I am leaning towards just getting a ZL1 diff/axles and an upgraded driveshaft for my car. Going to be going forced induction and looking at around 650 hp to start off with. Is the Eaton TruTrac just more or less a Posi style bandaid for my 1LE differential or can it actually hold some power?

09-21-2017, 01:58 PM	#5
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,165	Look at the Z28 diff it has Torsen locker/Posi and it holds up very. __________________ Orange Krush II 1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components.

09-21-2017, 02:45 PM	#6
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	I have the Eaton -- very much like the Z/28 -- helical driven and does a great job on the road course -- specifically why I chose it. Had the JRE posimod-- was not for a road course... Can't go wrong on the ZL1 setup -- thought it is heavy... I also added the LPW cover to mine as well as Hendrix Delrin offset diff bushings... axles, drive shaft, solid subframe bushings etc. you'd still need to do some bushing updates even to the ZL1 cradle... Overall very happy with my setup.. FI, 746 RWHP 794 RWTQ on E85, just had it out to the road course on 9/19... fun! -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577 Last edited by hammdo; 09-21-2017 at 03:54 PM.

09-19-2017, 06:51 PM	#3
cc-rider Drives: 2010 Camaro SS Join Date: Dec 2006 Location: MN Posts: 1,179	I've done a lot of research on this before buying. For what it's worth...I went with the ZL1 diff. But the trutrac has a decent reputation of holding some power. But not nearly to the point of the ZL1 diff. The ZL1 has proven to be damn near bulletproof. They are serious diffs. What swayed me on my decision is that it's not just the diff. You need axles too. Then while your in there...why not the driveshaft. It all starts to stack up. And the ZL1 diff swap (axles and all) has GM engineering around it. Proven. Available used or even brand new as a kit for a decent price. It just makes sense to go with it. The second the ZL1 kit came out...it took the market over. The disadvantage...it's heavy. About 70 lbs more. But...that's why it's strong. All that being said...people have gotten away pounding on their stock SS drivetrain forever too. But at 650 hp...the risk of failure goes up significantly for the stock system. The Trutrac no doubt improves that. But then you need the axles too for sure. Start stacking it up from a cost basis and see where it all ends up.