2015 2ls differential sway - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BARRY BROOKS · 07-17-2017, 06:37 PM

hey guys I need help. I am in the middle of a diff swap on my 2015 2ls automatic. I am installing a v8 diff with 3.45 gears and posi from a manual 2013 ss. bought complete rear with cradle. it is in the car but driveshaft will not hook up. I need to know what shaft I need to make this work. the pinion yoke is larger on the ss part. next option is to have driveshaft modified. thank for your help and time. first time posting on a forum.

BARRY BROOKS · 07-20-2017, 06:48 PM

ok found the solution just needed the back half of the driveshaft from an ss with the manual trans. all is good now. just waiting on the programmer.

ron123 · 07-21-2017, 06:19 AM

Sounds like you are going from 3.27 ratio to the 3.45? Interesting to see the jump in 0-60 time. The posi-traction does a great job minimizing tire spin on launch in the SS and will make a huge difference on your RS which tends to do long burnouts without it. Reminder: when changing fluid be sure to look at the correct spec in the Owners Manual ... the SS posi requires the little ~ 4 ounce bottle of AC Delco limited slip friction modifier to be added first before the axle lubricant. Are you going to have them re-calibrate so speedometer reads correctly for the new differential gearing/wheel size?

CamaroFred · 07-21-2017, 06:48 AM

Quote:

Originally Posted by ron123

Sounds like you are going from 3.27 ratio to the 3.45? Interesting to see the jump in 0-60 time. The posi-traction does a great job minimizing tire spin on launch in the SS and will make a huge difference on your RS which tends to do long burnouts without it. Reminder: when changing fluid be sure to look at the correct spec in the Owners Manual ... the SS posi requires the little ~ 4 ounce bottle of AC Delco limited slip friction modifier to be added first before the axle lubricant. Are you going to have them re-calibrate so speedometer reads correctly for the new differential gearing/wheel size?

The 2LS has a 2.92 screw; so 30MPG.
The OP will see an 18% increase in rear wheel torque.

I am curious as to how the brake bias is going to work out.

MyLocalDJ · 07-21-2017, 07:09 AM

I have been considering this mod also. Did you run into anything else that you had not considered and any words of wisdom for this mod?

BARRY BROOKS · 07-24-2017, 01:41 AM

Ron123 Mine is the 2ls so I had the 2.92 gear. should be much quicker now. Waiting on the programmer I ordered from Jegs so I can fix the speedo.

BARRY BROOKS · 07-24-2017, 01:45 AM

CamaroFred the best I ever got was 25mpg. I do city/highway combo on by drive. don't expect to lose to much hoping 1 - 1.5 mpg. I have driven it about 30 miles see no change in braking.

BARRY BROOKS · 07-24-2017, 01:51 AM

MyLocalDJ this is a very simple swap. I believe if I would have swapped an automatic rear I would not have needed the rear driveshaft from the ss. Since I went with the manual it has a larger yoke so the coupler would not fit. this is a easy swap with a helper I completed the swap in 7 hours.

BARRY BROOKS · 07-24-2017, 02:03 AM

Before the differential swap the car had run a best of 9.09 in the 1/8. Hoping for 8.80's. Just waiting on the programmer an I have to replace one wheel hub assembly making noise. the rear is from a salvage yard. It had some bent brackets.

07-17-2017, 06:37 PM	#1
BARRY BROOKS Drives: 2LS CAMARO Join Date: Jul 2017 Location: ZEPHYRHILLS FL Posts: 18	2015 2ls differential sway hey guys I need help. I am in the middle of a diff swap on my 2015 2ls automatic. I am installing a v8 diff with 3.45 gears and posi from a manual 2013 ss. bought complete rear with cradle. it is in the car but driveshaft will not hook up. I need to know what shaft I need to make this work. the pinion yoke is larger on the ss part. next option is to have driveshaft modified. thank for your help and time. first time posting on a forum. Last edited by BARRY BROOKS; 07-18-2017 at 10:40 PM.

07-21-2017, 06:19 AM	#3
ron123 Drives: 2014 2SS/RS Join Date: Dec 2014 Location: Raleigh, NC Posts: 1,053	Sounds like you are going from 3.27 ratio to the 3.45? Interesting to see the jump in 0-60 time. The posi-traction does a great job minimizing tire spin on launch in the SS and will make a huge difference on your RS which tends to do long burnouts without it. Reminder: when changing fluid be sure to look at the correct spec in the Owners Manual ... the SS posi requires the little ~ 4 ounce bottle of AC Delco limited slip friction modifier to be added first before the axle lubricant. Are you going to have them re-calibrate so speedometer reads correctly for the new differential gearing/wheel size? __________________ 2014 2SS/RS, Z28 CAI and High Wing Spoiler, ZL1 5.1:1 Ratio Short-Throw Shifter, ZL1 Pedals, ZL1 splash guards, NPP Dual-mode quad tip exhaust, Z28 strut tower brace, Camaro LED Cup-holders with footwell Lighting option, Leather visors, and Leather E-brake boot. Chevy dealer sponsored 67 retro SS nose stripe package.

07-21-2017, 07:09 AM	#5
MyLocalDJ Drives: 2015 2LS Join Date: Mar 2016 Location: Atlanta Posts: 238	I have been considering this mod also. Did you run into anything else that you had not considered and any words of wisdom for this mod? __________________

07-24-2017, 01:41 AM	#6
BARRY BROOKS Drives: 2LS CAMARO Join Date: Jul 2017 Location: ZEPHYRHILLS FL Posts: 18	Ron123 Mine is the 2ls so I had the 2.92 gear. should be much quicker now. Waiting on the programmer I ordered from Jegs so I can fix the speedo. Last edited by BARRY BROOKS; 07-24-2017 at 02:06 AM.

07-24-2017, 01:45 AM	#7
BARRY BROOKS Drives: 2LS CAMARO Join Date: Jul 2017 Location: ZEPHYRHILLS FL Posts: 18	CamaroFred the best I ever got was 25mpg. I do city/highway combo on by drive. don't expect to lose to much hoping 1 - 1.5 mpg. I have driven it about 30 miles see no change in braking. Last edited by BARRY BROOKS; 07-24-2017 at 02:04 AM.

07-20-2017, 06:48 PM	#2
BARRY BROOKS Drives: 2LS CAMARO Join Date: Jul 2017 Location: ZEPHYRHILLS FL Posts: 18	ok found the solution just needed the back half of the driveshaft from an ss with the manual trans. all is good now. just waiting on the programmer.

07-24-2017, 01:51 AM	#8
BARRY BROOKS Drives: 2LS CAMARO Join Date: Jul 2017 Location: ZEPHYRHILLS FL Posts: 18	MyLocalDJ this is a very simple swap. I believe if I would have swapped an automatic rear I would not have needed the rear driveshaft from the ss. Since I went with the manual it has a larger yoke so the coupler would not fit. this is a easy swap with a helper I completed the swap in 7 hours. Last edited by BARRY BROOKS; 07-24-2017 at 02:08 AM.

07-24-2017, 02:03 AM	#9
BARRY BROOKS Drives: 2LS CAMARO Join Date: Jul 2017 Location: ZEPHYRHILLS FL Posts: 18	Before the differential swap the car had run a best of 9.09 in the 1/8. Hoping for 8.80's. Just waiting on the programmer an I have to replace one wheel hub assembly making noise. the rear is from a salvage yard. It had some bent brackets. Last edited by BARRY BROOKS; 07-24-2017 at 08:25 PM.