Determine rear end gear ratio with th vin #
#1
Drifting
Thread Starter
Determine rear end gear ratio with th vin #
Is it possible to determine the rear end gear ratio with the last numbers of the Vin # 11552126 ? The is no tag on the rear indicating what it is...so i don't know if it is a 2 or 3 series carrier
#3
Le Mans Master
Member Since: Jan 2005
Location: Thousand Oaks California
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Originally Posted by jerrymuniz
Is it possible to determine the rear end gear ratio with the last numbers of the Vin # 11552126 ? The is no tag on the rear indicating what it is...so i don't know if it is a 2 or 3 series carrier
the car was built with the RPO GU2 - REAR AXLE 2.73 RATIO
Last edited by calemasters; 09-25-2006 at 05:23 PM.
#4
Team Owner
Jerry if I recall, your car originally had 2.73s (now 3.73s) didn't it?
Are you just trying to determine if you still have the 2 series carrier (housing new gears) or is this for someone else's car?
Are you just trying to determine if you still have the 2 series carrier (housing new gears) or is this for someone else's car?
#5
Just realized - becaues the C6 has an enclosed torque tube, one cannot simply jack up the rear of the car, spin the rear tires and count the # of revolutions of the driveshaft. So that does make it hard to figure out what the ratio is without having a VIN or other codes.
IS there a way to figure out the ratio without a VIN or other coding?
IS there a way to figure out the ratio without a VIN or other coding?
#6
Team Owner
Originally Posted by aero400
Just realized - becaues the C6 has an enclosed torque tube, one cannot simply jack up the rear of the car, spin the rear tires and count the # of revolutions of the driveshaft. So that does make it hard to figure out what the ratio is without having a VIN or other codes.
IS there a way to figure out the ratio without a VIN or other coding?
IS there a way to figure out the ratio without a VIN or other coding?
And of course just checking the codes (GU2, G92 etc.) on the little sticker inside the vehicle determines a lot as well.
#7
Safety Car
You could do a mph/rpm calculator. See what the RPMS are at 70 in the direct drive gear. 3rd in autos 4th in sticks. And what the tire size is. There are some websites with RPM calculators that you could punch in the different ratios and tire size and it will give you RPMs for those gears.
#8
Originally Posted by LS1LT1
Even with the torque tube one should still be able to spin it in neutral with the wheels up I think.
Originally Posted by Michrider
You could do a mph/rpm calculator. See what the RPMS are at 70 in the direct drive gear. 3rd in autos 4th in sticks. And what the tire size is. There are some websites with RPM calculators that you could punch in the different ratios and tire size and it will give you RPMs for those gears.
#9
Team Owner
Originally Posted by aero400
Yes, you can spin the wheels, but you cannot see the rotating driveshaft to determine how many driveshaft revolutions per wheel revolution (or vise versa).
#10
Drifting
Thread Starter
That is correct, I now have 3:73s. I purchased a spare C6 automatic transmission and the guy threw in the rear end. Usaully the rear has a tag, this one did not so I am trying to find out if its a 3 series carrier.
Thanks for the replies .......I guess its a 2 series which is really worthless to me. If anyone needs it let me know, make me an offer.
Thanks for the replies .......I guess its a 2 series which is really worthless to me. If anyone needs it let me know, make me an offer.
Originally Posted by LS1LT1
Jerry if I recall, your car originally had 2.73s (now 3.73s) didn't it?
Are you just trying to determine if you still have the 2 series carrier (housing new gears) or is this for someone else's car?
Are you just trying to determine if you still have the 2 series carrier (housing new gears) or is this for someone else's car?