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eatkins
New User
Jul 22, 2012, 10:12 AM
Post #1 of 9
(2779 views)
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i have 2000 chevy 1500 4x4 how find out the rear end gear ratio
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nickwarner
Veteran
/ Moderator
Jul 22, 2012, 10:17 AM
Post #2 of 9
(2776 views)
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you have a few options.
1. write down the last 8 digits of your VIN and call the parts department of your local Chevy dealer. They can look it up.
2. look for a steel tag mounted either on the axle tube or the diff carrier specifying the model number, serial number and ratio of your axle.
3. take off the diff cover and count the number of teeth of the ring gear and the pinion gear. Divide count of the ring by the pinion and that is your ratio.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 22, 2012, 11:59 AM
Post #3 of 9
(2748 views)
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Let me add a 4th possibility...........
You first need to know if it's limited slip or not.
Jack it up to get both rear wheels off the ground
with limited slip....
mark the bottom of the tire with a crayon. Now rotate the driveshaft, counting the exact number of turns to bring that mark one revolution and back to the bottom.
without limited slip
Mark one of the tires the same way but someone is going to have to hold the other tire still and this time you would rotate 2 full turns until the mark comes back the second time.
Once you have done this, analyze the number of turns of the driveshaft. re: 3 1/4 turns would be approx 3:23, 3:25 etc. 3.5 turns would be around 3:55s, Just over 4 would be 4;10, 4:11, etc. You would first need to know what your choices are.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Jul 22, 2012, 11:59 AM)
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nickwarner
Veteran
/ Moderator
Jul 22, 2012, 12:19 PM
Post #4 of 9
(2739 views)
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I hadn't even thought of limited slip. My brain must be taking a weekend off. Thanks HT.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 23, 2012, 5:11 AM
Post #6 of 9
(2708 views)
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The first three digits stamped on the right side axle tube is the gear ratio. There is also a sticker in the glove box called the RPO sticker. It has a bunch of letters and numbers on it.
GT4: 3.73:1
GHO: 3.54:1
GT5: 4.10:1
GU4: 3.08:1
GU6: 3.42:1
HC4: 4.65:1
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 23, 2012, 5:16 AM)
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re-tired
Veteran
/ Moderator
Jul 23, 2012, 5:33 AM
Post #7 of 9
(2699 views)
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This site is oozing with knowledge . Kudo's DS for remembering the 'ol "credit card" in the glove box as the dealership techs used to call it.
LIFE'S SHORT GO FISH
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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 23, 2012, 4:43 PM
Post #8 of 9
(2683 views)
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Credit card eh? I could buy a bigger tool box from the Matco man and charge it to GM. Oh wait, I mean the tax payers.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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re-tired
Veteran
/ Moderator
Jul 23, 2012, 6:49 PM
Post #9 of 9
(2669 views)
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At least theere is stiill a GM . Homney would have liquidated it and sold the dies to a chinese scrap metal outfit. OOPS , granny always warned me about mixing auto repair forums and politics.
LIFE'S SHORT GO FISH
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