Complete Rear bushing and 3.91 gear swap DIY - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

DOOK · 07-12-2014, 04:30 AM

So what kind of mileage can I expect from this gear change?
Currently, I am getting about 21.8 mpg combined.

robbiegordon · 08-14-2014, 09:35 PM

does anyone know the specification or if there is a spec for rotational torque measured at the pinon with side bearing pre-load after the side bearing caps are re-installed/torqued down to spec? thanks!

camaro-heater · 08-15-2014, 12:58 PM

Quote:

Originally Posted by robbiegordon

does anyone know the specification or if there is a spec for rotational torque measured at the pinon with side bearing pre-load after the side bearing caps are re-installed/torqued down to spec? thanks!

Call JRE and tell them you want to talk to the rear end guy. Very helpful!

robbiegordon · 08-17-2014, 01:14 PM

thanks, i ended up just setting the torque the same way that was shown in this thread any how. worked out fine.
i will say on mine it was a huge process getting the pinon pressed in and out and in took a lot more than just a little hammer. i had to use a hydrualic press to do it. but the freezer/bbq worked really well. the ring gear and the pinon bearing basically just fell together under their own weight. took me about a day and a half taking my time. i would not say this job was easy. haha, but its definitly doable . i dont really see why so many people are so afraid to do this themselves. this was my first time doing gears and im glad i did. all i used was this thread, a chilton guide and a little youtube .

My speedo was off i think around 5-6 mph but it didnt throw any stabilitrac codes or anything, i used a hypertech speedo calibrator to recalibrate. although it doesnt have 3.91:1 so i set it to 4.10 and messed around with the tire size a little to get the last 2-3 mph difference.

thank you for posting this for all of us it would of been a lot more guess work with out it for sure. i cant tell you how many threads i found on diy gear swaps that said dont even attempt to diy. anyways, good luck to any one else out there attempting this. my advice is be patient and make sure you have all the right tools, check and re check everything. Thanks again!

http://www.camaro5.com/forums/album.php?albumid=16105

Shawno72 · 03-17-2016, 09:48 PM

Great write up!

derek1387 · 03-31-2016, 10:15 AM

Yeah...now to decide if i want to attempt this on my own or not.

ActNup NY · 03-31-2016, 10:29 AM

Paying attention

derek1387 · 04-13-2016, 06:03 AM

This How To has inspired me.

Have a 1LE diff incoming, and my 3.27 diff sold, and sub frame bushing and diff bushings on the way. Should be a fun weekend and quite the transformation for my little 6!

Shawno72 · 04-13-2016, 06:52 AM

Good luck my man

Redbeard 11 · 10-29-2016, 12:04 PM

Just wanted to thank the guys who take the time to write up these DIYS. I am in the middle of a 3.91 gear swap and and somebody in their thread explained how to remove the pumpkin from the passenger side leaving the driverside bolted up. THANKS to u especially cause that worked and saved a ton of work! I hope we continue to post as we can so that we may be a help to others down the road. THANKS CAMARO 5 members

blakjak55 · 10-31-2016, 08:41 AM

Yup, that was a huge timesaver for me as well during my swap.

I was a little concerned yanking the carrier out without a case spreader as well but with some rags and a prybar and she popped right out.

07-12-2014, 04:30 AM	#43
DOOK Wearing My BowTie Drives: 2SS~RS VR~Black Ralley's Join Date: Sep 2011 Location: South Surrey Posts: 97	So what kind of mileage can I expect from this gear change? Currently, I am getting about 21.8 mpg combined. __________________

08-17-2014, 01:14 PM	#46
robbiegordon Robert Drives: 2011 Summit White SS LS3 Join Date: Feb 2011 Location: Jacksonville, FL Posts: 323 View My Garage	thanks, i ended up just setting the torque the same way that was shown in this thread any how. worked out fine. i will say on mine it was a huge process getting the pinon pressed in and out and in took a lot more than just a little hammer. i had to use a hydrualic press to do it. but the freezer/bbq worked really well. the ring gear and the pinon bearing basically just fell together under their own weight. took me about a day and a half taking my time. i would not say this job was easy. haha, but its definitly doable . i dont really see why so many people are so afraid to do this themselves. this was my first time doing gears and im glad i did. all i used was this thread, a chilton guide and a little youtube . My speedo was off i think around 5-6 mph but it didnt throw any stabilitrac codes or anything, i used a hypertech speedo calibrator to recalibrate. although it doesnt have 3.91:1 so i set it to 4.10 and messed around with the tire size a little to get the last 2-3 mph difference. thank you for posting this for all of us it would of been a lot more guess work with out it for sure. i cant tell you how many threads i found on diy gear swaps that said dont even attempt to diy. anyways, good luck to any one else out there attempting this. my advice is be patient and make sure you have all the right tools, check and re check everything. Thanks again! http://www.camaro5.com/forums/album.php?albumid=16105 Last edited by robbiegordon; 08-17-2014 at 01:33 PM. Reason: update

03-17-2016, 09:48 PM	#47
Shawno72 Drives: 2015 Black 2LT RS M6 Join Date: Aug 2015 Location: Cali Posts: 2,033	Great write up! __________________ Overkill tune/E85/80mm•CAI cold air intake w/my custom maf tube•Apex air scoop•JacFab ported intake/Extendolater•Vitesse•EE EX2 catch can•Innovate wideband•ARH HFC's•NPP exhaust•11386 xpipe•Brembos/cross drilled/slotted rotors•SS M/C•Pfadt 1.25 springs•1LE struts/sways/strut tower brace•BMR diff bush, trail arms/bush, adj toe links•My custom Tunnel brace•Hurst short throw shifter•JDP stage 1 clutch res•1LE steering wheel, shift boot•ZL1 rear diffuser/splash guards•GM splitter•Z/28 grille/flowtie/spoiler/wheels•GM performance pedals•"Chevrolet" door sills•10" Kicker sub•BigWorm overlays

03-31-2016, 10:15 AM	#48
derek1387 Drives: 2015 1LS Red V6 Join Date: Aug 2015 Location: St Joseph, MO Posts: 1,849	Yeah...now to decide if i want to attempt this on my own or not. __________________ Sponsors: Overkill Motorsport BCS Auto JacFab Machining APDEG Dream Gear Mobile Audio Thanks to Will @ Overkill Motorsports, Jason @ JacFab, Jim @ Ohio Speed, Brandon at Dream Gear, and the boys at Randy Curnow Chevrolet 5th Gen V6 Performance Facebook Group

03-31-2016, 10:29 AM	#49
ActNup NY Drives: 2011 1LT Black Camaro Join Date: Feb 2012 Location: Queens, NYC Posts: 2,496 View My Garage	Paying attention __________________ *The DREAM is free... It's the HUSTLE that is sold seperately*

08-14-2014, 09:35 PM	#44
robbiegordon Robert Drives: 2011 Summit White SS LS3 Join Date: Feb 2011 Location: Jacksonville, FL Posts: 323 View My Garage	does anyone know the specification or if there is a spec for rotational torque measured at the pinon with side bearing pre-load after the side bearing caps are re-installed/torqued down to spec? thanks!

04-13-2016, 06:03 AM	#50
derek1387 Drives: 2015 1LS Red V6 Join Date: Aug 2015 Location: St Joseph, MO Posts: 1,849	This How To has inspired me. Have a 1LE diff incoming, and my 3.27 diff sold, and sub frame bushing and diff bushings on the way. Should be a fun weekend and quite the transformation for my little 6! __________________ Sponsors: Overkill Motorsport BCS Auto JacFab Machining APDEG Dream Gear Mobile Audio Thanks to Will @ Overkill Motorsports, Jason @ JacFab, Jim @ Ohio Speed, Brandon at Dream Gear, and the boys at Randy Curnow Chevrolet 5th Gen V6 Performance Facebook Group

04-13-2016, 06:52 AM	#51
Shawno72 Drives: 2015 Black 2LT RS M6 Join Date: Aug 2015 Location: Cali Posts: 2,033	Good luck my man __________________ Overkill tune/E85/80mm•CAI cold air intake w/my custom maf tube•Apex air scoop•JacFab ported intake/Extendolater•Vitesse•EE EX2 catch can•Innovate wideband•ARH HFC's•NPP exhaust•11386 xpipe•Brembos/cross drilled/slotted rotors•SS M/C•Pfadt 1.25 springs•1LE struts/sways/strut tower brace•BMR diff bush, trail arms/bush, adj toe links•My custom Tunnel brace•Hurst short throw shifter•JDP stage 1 clutch res•1LE steering wheel, shift boot•ZL1 rear diffuser/splash guards•GM splitter•Z/28 grille/flowtie/spoiler/wheels•GM performance pedals•"Chevrolet" door sills•10" Kicker sub•BigWorm overlays

10-29-2016, 12:04 PM	#52
Redbeard 11 Drives: 2011 1SS LS3/ SC Join Date: Apr 2016 Location: CANTON GA Posts: 77	HATS OFF TO THE DIY GUYS Just wanted to thank the guys who take the time to write up these DIYS. I am in the middle of a 3.91 gear swap and and somebody in their thread explained how to remove the pumpkin from the passenger side leaving the driverside bolted up. THANKS to u especially cause that worked and saved a ton of work! I hope we continue to post as we can so that we may be a help to others down the road. THANKS CAMARO 5 members __________________ 2011 1SS LS3/ Eforce 3.25,FC#72,JRE fuel rail mod,V-max PTB.,alky meth, CAI intake, BTR Stage3 cam supp.mods,melling O.P. etc. MSD wires,SW headers and exhaust, fidanza alum.flywheel and ceramic clutch, tick speed bleeder,DSS 1pc. alum.ds., ZL1 3.73 cradle, slotted rotors w/ceramic pads,20" Z28 replicas 650RWHP/635RWTQ

10-31-2016, 08:41 AM	#53
blakjak55 drinks virgil's Drives: 2010 2SS M6 Join Date: Feb 2014 Location: Missouri Posts: 448	Yup, that was a huge timesaver for me as well during my swap. I was a little concerned yanking the carrier out without a case spreader as well but with some rags and a prybar and she popped right out. __________________ 2010 2SS/RS M6 - CAI Intake - Borla Stinger - VTC - 3.91's Eibach Sways - LG ZR28's - BMR Springs - 285/35 Squared