Getting my 3.91's tomorrow - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

B_rad1969 · 10-29-2017, 03:00 PM

I read somewhere that when swapping gears, the computer will correct for the 3.91's and won't need a computer tweek. Is this right?

Redgt03 · 10-29-2017, 03:02 PM

I thought you need to get your speedometer corrected

mydreamcar · 10-29-2017, 03:12 PM

Quote:

Originally Posted by B_rad1969

I read somewhere that when swapping gears, the computer will correct for the 3.91's and won't need a computer tweek. Is this right?

Quote:

Originally Posted by Redgt03

I thought you need to get your speedometer corrected

The car won't correct for the new gear, your tuner or the dealer can.

Royal Tiger · 10-29-2017, 05:08 PM

My dream car is correct. It has to be recalibrated by the dealer or your tuner.

You’ll love it. The 3.91 has been my favorite mod.

mydreamcar · 10-29-2017, 05:12 PM

Quote:

Originally Posted by Royal Tiger

My dream car is correct. It has to be recalibrated by the dealer or your tuner.

You’ll love it. The 3.91 has been my favorite mod.

Couldnt agree with you more , the rear gears was by far the best thing I ever did, add the eaton tru tec to it and the car finally felt like a 400 plus hp car

2010reddevil · 10-29-2017, 08:17 PM

A good stall converter will give even better gains yet. That and a good tune.

B_rad1969 · 11-04-2017, 05:05 PM

I got my gears. I haven't gotten on them real hard but I can tell a difference. It isn't near what 4.11's did for my '68 but I like them so far.

rontammy0 · 11-04-2017, 06:24 PM

Quote:

Originally Posted by B_rad1969

I got my gears. I haven't gotten on them real hard but I can tell a difference. It isn't near what 4.11's did for my '68 but I like them so far.

Get on them.....I went from the shop to the track. About 1.5 hours drive. Let the car cool for an hour or so then hammer down. Zero problems. Breakin isnt thst big a deal.

Royal Tiger · 11-04-2017, 06:53 PM

I did rear diff oil change at 1000 miles. No noise or issues yet. I love them.

10-29-2017, 03:00 PM	#1
B_rad1969 Drives: 2013 2lt Join Date: May 2014 Location: Indiana Posts: 72	Getting my 3.91's tomorrow I read somewhere that when swapping gears, the computer will correct for the 3.91's and won't need a computer tweek. Is this right?

10-29-2017, 08:17 PM	#6
2010reddevil Drives: 2010 Camaro 2SS Victory Red 6M Join Date: Apr 2015 Location: Gulf Coast, TX Posts: 1,424	A good stall converter will give even better gains yet. That and a good tune. __________________ 2011 2SS 6A Red Jewel Metallic, Vararam Tune CAI, Magnaflow 3" Competition c/b, Speed Engineering 1-7/8 LT's, Circle D 5C, M/T 275/40R20 S/S, HPTuners tune by Ryan@GPI 12.3 @ 112 ACM as of 12/22/19 Gone on 12/28/19 R I P 2010 2SS 6M Victory Red/Black (old ride) CAI intake, Speed Engineering 1 7/8" LT's, X4 base tune, Flowmaster Outlaw axle-back. 12.6 @ 115 SAR as of 9/19/15 Gone but never forgotten.

10-29-2017, 03:02 PM	#2
Redgt03 Drives: 2011 Camaro SS Join Date: Sep 2017 Location: Peoria Posts: 254	I thought you need to get your speedometer corrected

10-29-2017, 05:08 PM	#4
Royal Tiger Account Suspended Drives: 2013 2SS/RS Convertible Join Date: Apr 2016 Location: Lehigh Valley, PA Posts: 3,873	My dream car is correct. It has to be recalibrated by the dealer or your tuner. You’ll love it. The 3.91 has been my favorite mod.

11-04-2017, 05:05 PM	#7
B_rad1969 Drives: 2013 2lt Join Date: May 2014 Location: Indiana Posts: 72	I got my gears. I haven't gotten on them real hard but I can tell a difference. It isn't near what 4.11's did for my '68 but I like them so far.

11-04-2017, 06:53 PM	#9
Royal Tiger Account Suspended Drives: 2013 2SS/RS Convertible Join Date: Apr 2016 Location: Lehigh Valley, PA Posts: 3,873	I did rear diff oil change at 1000 miles. No noise or issues yet. I love them.