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Old 04-03-2009, 12:47 PM   #1
4drmadness
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Default Difference between 3.3 and 3.5 gears when installed

Hey guys i want to make sure the pumpkin i have on my car is a 3.5. Is there anyways to tell if its a 3.3 or a 3.5 without uninstalling it? thanks for your help
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Old 04-03-2009, 12:49 PM   #2
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do u have an AT or MT?
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Old 04-03-2009, 01:03 PM   #3
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I have a AT
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Old 04-03-2009, 01:04 PM   #4
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After i installed the gears my rpms are exactly 2875 at 80mph. Im thinking that a 3.3 should get this.

Part numbers arent any help because the numbers on the pumpkin are just the case number.
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Old 04-03-2009, 01:07 PM   #5
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AT is 3.3 stock
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Old 04-03-2009, 01:11 PM   #6
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Divide the number of teeth on the driven gear by the number of teeth on the driving pinion gear.
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Old 04-03-2009, 01:15 PM   #7
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i have a AT, but i bought a pumpkin from a MT. Thats what the buyer told me. This pumpkin is still on the car
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Old 04-03-2009, 01:16 PM   #8
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The pumpkin is still installed on the car, so i dont think i will be able to do this check? or can i ?



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Divide the number of teeth on the driven gear by the number of teeth on the driving pinion gear.
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Old 04-03-2009, 02:50 PM   #9
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The pumpkin is still installed on the car, so i dont think i will be able to do this check? or can i ?
No. That's how the ratio is determined. Counting the teeth will be a headache.
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Old 04-04-2009, 06:42 AM   #10
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david V u impress me. I thought I was the only one that knew that
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Old 04-04-2009, 09:31 AM   #11
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Jack the back of the car up... Put it in neutral... Count how many times you turn the driveshaft to get the back tires to turn one revolution.

If you turn it 3.5 times, it is a 3.5...
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Old 04-04-2009, 05:21 PM   #12
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Jack the back of the car up... Put it in neutral... Count how many times you turn the driveshaft to get the back tires to turn one revolution.

If you turn it 3.5 times, it is a 3.5...
OK that's pretty cool.
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Old 06-08-2009, 09:43 PM   #13
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If the guy is MT, more likely than not it is 3.5. If the guy is AT, then he is most likely to have 3.3. Only reason why a MT would have the 3.3 ratio is because he is FI and he swapped it out.

If you feel you need to double check, then the tire rotation method may be your easiest route. Just make sure to mark the tire. The differential will already have a painted mark on it to determine the number of revolutions. It will be on the differential stub that connects to the drive shaft.

If you need someone to do the swap, hit me up.... im in OC.
Or if this guy falls through on the deal, ill give you a great deal on
a full pumpkin.
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Old 06-08-2009, 09:43 PM
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