Anyone ever heard of 3:23's on a silverado with a V8??
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no, I think the only avail with the 5.3 is 3.42, 3.73, nd 4.10. The 3.23 is usually for small trucks and cars.

 

I'm kinda ticked off right now, had the dealer run my VIN to see what exact gearing I had. He came up with 3:23 on the computer!! The day I bought this truck the salesman swore to me it had 3:73's, I told him that was what I needed. Shoulda double checked myself I guess. Gonna call back tommorrow maybe he read it wrong. Anyone have any idea how much this'll affect towing/hauling after a 4in. lift and 33's?? Is putting different gears real expensive?

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This doesn't sound right at all. Argon, could you check and see what gears he has? I highly doubt you have 3.23's. However, if you do have 3.23's yes, it will affect towing/hauling especially when you put a larger tire on.

It is not so much the gears that are expensive, it is the labor. So to answer your question, yes installing new gears are expensive ($1,000+).

[sm=WTFsgign.gif]I was just about to post this message when I found through research that the 07 does have a 3.23 ratio option!! Wow, this is (how can I say) RIDICULOUS!! However, is your truck 2WD? If so, I can see putting 3.23 gears in. You really don't need 3.73's and up, unless you are going to be towing/hauling and the 3.23's will give you better gas mileage as well. I'm sure Argon can hook it up and find out exactly what size gears you have. Hope you have 3.73's bro!

 

Yeah...let's have the VIN and check that...

 

Alright my VIN# 1GCEC14VX7E168444. The truck is a 2wd but I do haul some pretty heavy loads sometimes. which is why I also paid a little more for the long bed. Thanks Argon
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It is a 3.23












VIN
1GCEC14VX7E168444




VEHICLE BUILD



Merchandising Model :
CC15903-2007SILVERADO 1500 2WD REG CAB W/T



Gross Vehicle Weight Rating :
2906 kg (6408 lb)
Order Number :
KHFTBP

Build Date :
10/23/2006
Build Plant :
17E03




OPTION CODES



AE7 - CLOTH BENCH SEATING
AL0 - SENSOR INDICATOR INFLATABLE RESTRAINT FRT PASS

CJ3 - AIR COND., DUAL ZONE MANUAL
CWT - WORK TRUCK NAMEPLATE DELETE

C7H - GVW RATING - 6,400 LB
DE2 - BLACK FOLDAWAY EXTERIOR MIRRORS

EVA - EVAP EMISSION REQUIREMENT
E63 - FLEETSIDE BODY

GMC - ASSEMBLY PLANT-PONTIAC EAST
GU5 - REAR AXLE 3.23 RATIO

JF7 - BRAKES, 17" DISC/DRUM
KG3 - 145 AMP ALTERNATOR

KUP - THROTTLE CONTROL ELECTRONIC
LR4 - VORTEC 4.8L V8

M30 - 4-SPD AUTOMATIC TRANSMISSION
NU1 - CAL EMISSION SYSTEM LEVEL 2

QPR - P245/70R17 ALS BW TIRES
R6K

R6P - PREMIUM PAINT
R8C - ******************************* *** 2007 CLASSIC SILVERADO **** *******************************

R9N - LEATHER SEAT TRIM
SLM - STOCK ORDERS

UM7 - AM/FM STEREO W/4 SPEAKERS
UQ5 - SOUND SYSTEM FEATURE, 4 SPEAKER

VG3 - CHROME FRONT BUMPER
VXS - COMPLETE VEHICLE LABEL

V43 - PAINTED REAR STEP BUMPER
V73 - STATEMENT OF VEHICLE CERT.-U.S. /CANADA

V76 - RECOVERY HOOKS
XPR - FRONT TIRE P245/70R17-108S

X88 - CHEVROLET CONVERSION
YD3 - BASE AXLE

YD5 - BASE FRONT SPRING
YD6 - BASE REAR SPRING

YF5 - 50-STATE EMISSIONS
YPR - REAR TIRE P245/70R17-108S

ZPR - SPARE TIRE P245/70R17-108S
ZY1 - SOLID PAINT

Z83 - SMOOTH RIDE SUSPENSION
1SZ - MANUAL DUAL ZONE A/C DISCOUNT

1WT - BASE EQUIPMENT GROUP
50U - SUMMIT WHITE

6MT - COMPONENT FRT LH COMP. SEL SUSP
69C - DARK CHARCOAL

69I - DK PEWTER INTERIOR TRIM
7MT - COMPONENT FRT RH COMP. SEL SUSP

 

Thanks for running the VIN for me. Oh well guess theres not much I can do, shoulda checked that out for myself.
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Iunderstandthat all new 2007 Chevy classic trucks come with 3:23's so Chevy can post the excellent high way miles

 

no..my 07 classic 1/2 ton 2wd is a 373