3.91 Gear Set? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

butters · 05-15-2012, 08:31 PM

I know phastek sells a 3.55 set. I have an automatic and was wondering if anyone makes a 3.73 or 3.91 gear set or if it's even possible?

gahammerle · 05-15-2012, 08:40 PM

I believe both 3.73 & 3.91 are available for the manuals (auto V6 uses a different diff). I think LPE/AAM make the 3.91, not sure on the 3.73.

Supercharged SS · 05-15-2012, 08:48 PM

Quote:

Originally Posted by butters

I know phastek sells a 3.55 set. I have an automatic and was wondering if anyone makes a 3.73 or 3.91 gear set or if it's even possible?

The 3.70 and 3.91 are made for LPE by American axle and are as good as oem.

http://jreperformanceparts.com/linge...-70-ratio.html

butters · 05-15-2012, 09:09 PM

It says there for the SS, these will still fit an auto v6?

Edit: nevermind, they say they can be adapted for the v6 with new half shafts and a new driveshaft.

lexlueger · 05-15-2012, 09:14 PM

No. Only gears available for the v6 are 3.55 from richmond that I know of.

butters · 05-15-2012, 09:32 PM

Right you are. Just found a great write up from Apex. The autos can upgrade to a 3.55 with a 10% increase in torque.

Manuals can upgrade to a 3.73 with similar results.

http://www.camaro5.com/forums/showthread.php?t=133090

05-15-2012, 08:31 PM	#1
butters Drives: 2010 2SS/RS L99 Join Date: Jul 2011 Location: Chicago, IL Posts: 1,139 View My Garage	3.91 Gear Set? I know phastek sells a 3.55 set. I have an automatic and was wondering if anyone makes a 3.73 or 3.91 gear set or if it's even possible? __________________

05-15-2012, 08:40 PM	#2
gahammerle Drives: 2010 Camaro LS M6 Inferno Orange Join Date: May 2010 Location: Lebanon, OH Posts: 1,672	I believe both 3.73 & 3.91 are available for the manuals (auto V6 uses a different diff). I think LPE/AAM make the 3.91, not sure on the 3.73. __________________ Gordy Injen CAI / Solo Mach-X LLT / Solo High-flow res-cats / Barton short shifter / RX Catch Can / RPI Gills / 35% tint / LED Footwell Lighting Front & Rear / Pedders Street 1 / Pedders steering rack bushing / SS struts / Pfadt drop springs / VMax Ported Throttle Body / Spohn Toe Rods / Spohn Trailing Arms / Trifecta Tune / MACE 25mm Intake Spacers Find me on Facebook: http://www.facebook.com/gahammerle

05-15-2012, 09:09 PM	#4
butters Drives: 2010 2SS/RS L99 Join Date: Jul 2011 Location: Chicago, IL Posts: 1,139 View My Garage	It says there for the SS, these will still fit an auto v6? Edit: nevermind, they say they can be adapted for the v6 with new half shafts and a new driveshaft. __________________

05-15-2012, 09:14 PM	#5
lexlueger Drives: V10 BMW M5, Supercharged 2SS/RS Join Date: Jun 2010 Location: Charlotte NC /Brooklyn NY Posts: 2,305	No. Only gears available for the v6 are 3.55 from richmond that I know of. __________________ MAST 416 STROKER: STAGE 3 TVS 2300 CUSTOM CAM TPIS 102 TB IW 8 RIB PULLEY W/ OD COG REARS NX EXPRESS/NANO KIT KDI HEAT EXCHANGER/ROTOFAB RESERVOIR CIRCLE D 2800 TC/FLEX PLATE/ADM TRANS COOLER DSS DRIVESHAFT/1400 HP AXLES EATON TRUETRAC -LPE 3.27 GEARS DYNATECH HEADERS/MAGNAFLOW EXHAUST SQUASH RETURN STYLE FS ID 850's E85/ FLEXFUEL BMR/EIBACH SUSPENSION KILL MODE, ON.

05-15-2012, 09:32 PM	#6
butters Drives: 2010 2SS/RS L99 Join Date: Jul 2011 Location: Chicago, IL Posts: 1,139 View My Garage	Right you are. Just found a great write up from Apex. The autos can upgrade to a 3.55 with a 10% increase in torque. Manuals can upgrade to a 3.73 with similar results. http://www.camaro5.com/forums/showthread.php?t=133090 __________________