CLOSED: ZL1 Differential 3.73 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

R3VoLuTioN · 07-29-2019, 06:40 PM

Searching for a ZL1 3.73 differential to set aside for a fall/winter project.

CLOSED- found what I needed. Ebay and Facebook were better resources for these parts. Many leads.

Lussif3r · 07-31-2019, 09:13 AM

Following

R3VoLuTioN · 08-04-2019, 08:40 PM

Quote:

Originally Posted by Lussif3r

Following

Not much to follow

jprodun1 · 08-04-2019, 08:56 PM

If not a bother, and to to hijack the thread, but why you decided to go with 3.73 over 3.91?

Thanks

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R3VoLuTioN · 08-04-2019, 10:10 PM

Quote:

Originally Posted by jprodun1

If not a bother, and to to hijack the thread, but why you decided to go with 3.73 over 3.91?

Thanks

Sent from my iPhone using Tapatalk

There's nothing to hijack here, glad to answer! The 3.91 differential may not reliably handle the amount of power I have. From what I understand it's basically identical to the stock SS m6 3.45 but with a different ratio. The ZL1 3.73 is heavy duty and beefed up for the power. It's much more substantial.

jprodun1 · 08-04-2019, 11:25 PM

Quote:

Originally Posted by R3VoLuTioN

There's nothing to hijack here, glad to answer! The 3.91 differential may not reliably handle the amount of power I have. From what I understand it's basically identical to the stock SS m6 3.45 but with a different ratio. The ZL1 3.73 is heavy duty and beefed up for the power. It's much more substantial.

Got it. Thank you for your reply!

And good luck!

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R3VoLuTioN · 08-10-2019, 06:15 PM

Still looking

race24x · 08-13-2019, 03:58 PM

Again not to hijack, but it is my understanding no one makes gears for the ZL1 differential and the only choices are 3.23 and 3.73. I could be wrong, but this is what I saw when I was looking for the same thing for my car. You need Diff half shafts driveshaft something on the end of the transmission oil block off lines as the ZL1 has a cooler. I am sure I am missing some small stuff but this is the list as I remember it.

R3VoLuTioN · 08-13-2019, 10:22 PM

Quote:

Originally Posted by race24x

Again not to hijack, but it is my understanding no one makes gears for the ZL1 differential and the only choices are 3.23 and 3.73. I could be wrong, but this is what I saw when I was looking for the same thing for my car. You need Diff half shafts driveshaft something on the end of the transmission oil block off lines as the ZL1 has a cooler. I am sure I am missing some small stuff but this is the list as I remember it.

You are correct. A 3.73 is an improvement for my car so I wouldn't need to swap gears in it. I can source aftermarket or OE zl1 half shafts and a driveshaft that are compatible. The main cost is the differential carrier which is why I'm trying to find one used as top priority of the conversion parts list. I'd plug the oil cooler orifices same way GM does for the GMPP kit

07-29-2019, 06:40 PM	#1
R3VoLuTioN Drives: 2011 1SS RS Synergy Join Date: Aug 2010 Location: Michigan Posts: 458	CLOSED: ZL1 Differential 3.73 Searching for a ZL1 3.73 differential to set aside for a fall/winter project. CLOSED- found what I needed. Ebay and Facebook were better resources for these parts. Many leads. Last edited by R3VoLuTioN; 08-22-2019 at 04:24 PM.

07-31-2019, 09:13 AM	#2
Lussif3r Drives: 2014 Camaro SS Red Hot Join Date: Jul 2019 Location: Western NC Posts: 20	Following

08-04-2019, 08:56 PM	#4
jprodun1 Drives: 2010 Camaro 1SS Join Date: Dec 2018 Location: New York Posts: 171 View My Garage	If not a bother, and to to hijack the thread, but why you decided to go with 3.73 over 3.91? Thanks Sent from my iPhone using Tapatalk

08-10-2019, 06:15 PM	#7
R3VoLuTioN Drives: 2011 1SS RS Synergy Join Date: Aug 2010 Location: Michigan Posts: 458	Still looking

08-13-2019, 03:58 PM	#8
race24x Drives: 80 Z28 - 93 Z28 - 14 Camaro SS-RS Join Date: Sep 2016 Location: Fayette Maine Posts: 387	Again not to hijack, but it is my understanding no one makes gears for the ZL1 differential and the only choices are 3.23 and 3.73. I could be wrong, but this is what I saw when I was looking for the same thing for my car. You need Diff half shafts driveshaft something on the end of the transmission oil block off lines as the ZL1 has a cooler. I am sure I am missing some small stuff but this is the list as I remember it.