3.73s or 4.10s
Jun 10, 2007 | 05:33 PM
#13
go with the 4.10's because there is no real difference in how they perform from a 3.73!!! my truck originally had 3.73's and i swapped them over to 4.11's and noticed nothing.
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Jun 10, 2007 | 06:23 PM
#14
Thread Starter
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From: Montgomery, AL
Where in the VIN does it say what gears I have and if I have the locking rear end of not? I know that when the truck spins it does spin both tires so I think it has a locker but I would like to know for sure. Thanks
Jun 10, 2007 | 07:16 PM
#17
TECH Apprentice
Joined: Feb 2007
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From: Houston, Tx.
Originally Posted by skyhighsami
Where in the VIN does it say what gears I have and if I have the locking rear end of not? I know that when the truck spins it does spin both tires so I think it has a locker but I would like to know for sure. Thanks
GT4 - 3.73 Rear Axle Gear Ratio
GT5 - 4.10 Rear Axle Gear Ratio
HC2 - 2.76 Rear Axle Gear Ratio
HC4 - 4.56 Rear Axle Gear Ratio
HC8 - 3.21 Rear Axle Gear Ratio
HE3 - 3.07 Rear Axle Gear Ratio
HO4 - 4.11 Rear Axle Gear Ratio
Look for those numbers on the sticker in your glove box.
Jun 11, 2007 | 08:53 AM
#18
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From: Montgomery, AL
I drove with the truck in OD today and watched the RPMs. It looked like I was running around 1500 or so. So that makes me think that I have a 3.23, I don't know for what reason I was thinking I has a 3.08. Anyway so going from a 3.23 to a 3.73 I don't think will make enough difference, so I will be looking at going 4.11 if I do anything. I will see how much harder it will come out of the hole after the headers and the tune. I think that the TM is hurting it more than anything. It is a slug out of the hole.
