Zl1 rear end ratios. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Motorboy8769 · 07-25-2016, 07:09 PM

Wondering what gear ratios are available. It says it comes with 3.73 can you get a 4.56??

dreksnot · 07-25-2016, 09:42 PM

3.23 and 3.73. That's it.

Avalnch · 08-02-2016, 09:09 PM

3.23 Auto
3.73 M6
Not sure if these are swappable.

dreksnot · 08-02-2016, 09:52 PM

Quote:

Originally Posted by Avalnch

3.23 Auto
3.73 M6
Not sure if these are swappable.

Yes.

Moreair1 · 08-03-2016, 10:22 AM

Quote:

Originally Posted by dreksnot

Yes.

So what is you preliminary thoughts about 3.73s compared to 3.23s so far, I know your still getting use to the 3.23s, but I know you do multiple events

dreksnot · 08-03-2016, 01:52 PM

Quote:

Originally Posted by Moreair1

So what is you preliminary thoughts about 3.73s compared to 3.23s so far, I know your still getting use to the 3.23s, but I know you do multiple events

Love them for general driving, like around town, on the highway. They seem to be just fine for drag racing, autocross but haven't tried them out on the road course yet. Overall, I'm glad I swapped over with my setup.

Moreair1 · 08-03-2016, 03:37 PM

Quote:

Originally Posted by dreksnot

Love them for general driving, like around town, on the highway. They seem to be just fine for drag racing, autocross but haven't tried them out on the road course yet. Overall, I'm glad I swapped over with my setup.

I glad the decision worked out for you,

christianchevell · 08-07-2016, 10:42 AM

You would not want a 4:56 in our size for the SS or the slightly larger ZL1 ring gear ratio as its most likely to be more prone to breakage with so many teeth being so small as what I have heard of those who go 4:10 gears more prone over time. So 3:91 or lower seems to be a ticket for stock type rear ends ..... and the price is reasonable from them being in the 1le for a SS and a zl1 being two sizes and the 3:73 the more desirable from the manual. AS the cost for the 3:73 is more and numerically less .

Motorboy8769 · 08-07-2016, 12:00 PM

I wouldn't do 4.56 in stock size but they the zl1 is 9.9" so I figured they may make it for that rear end

Bo White · 08-07-2016, 12:43 PM

It's not that the teeth get smaller as much as the mass gets smaller on the pinion gear.
As ratios get higher in number the ring gear gets larger and the pinion gear gets smaller. The smaller the pinion gear the weaker it becomes and tries to walk up the ring gear under torque easier and pops the teeth.

07-25-2016, 07:09 PM	#1
Motorboy8769 Drives: 2015 2ss Join Date: Jun 2015 Location: Wooster ohio Posts: 586	Zl1 rear end ratios. Wondering what gear ratios are available. It says it comes with 3.73 can you get a 4.56??

07-25-2016, 09:42 PM	#2
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,605 View My Garage	3.23 and 3.73. That's it. __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

08-07-2016, 10:42 AM	#8
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	You would not want a 4:56 in our size for the SS or the slightly larger ZL1 ring gear ratio as its most likely to be more prone to breakage with so many teeth being so small as what I have heard of those who go 4:10 gears more prone over time. So 3:91 or lower seems to be a ticket for stock type rear ends ..... and the price is reasonable from them being in the 1le for a SS and a zl1 being two sizes and the 3:73 the more desirable from the manual. AS the cost for the 3:73 is more and numerically less . __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

08-07-2016, 12:43 PM	#10
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	It's not that the teeth get smaller as much as the mass gets smaller on the pinion gear. As ratios get higher in number the ring gear gets larger and the pinion gear gets smaller. The smaller the pinion gear the weaker it becomes and tries to walk up the ring gear under torque easier and pops the teeth. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

08-02-2016, 09:09 PM	#3
Avalnch Drives: Rally Yellow Camaro+Avalanche Join Date: Dec 2009 Location: Vancouver Posts: 1,110	3.23 Auto 3.73 M6 Not sure if these are swappable.

08-07-2016, 12:00 PM	#9
Motorboy8769 Drives: 2015 2ss Join Date: Jun 2015 Location: Wooster ohio Posts: 586	I wouldn't do 4.56 in stock size but they the zl1 is 9.9" so I figured they may make it for that rear end