4.10, 3.73, stock: how to tell?
02-08-2006, 08:21 PM
#1
2nd Gear Member
Thread Starter
Join Date: Feb 2006
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Posts: 199
4.10, 3.73, stock: how to tell?
This might be a Noob question. oh well:
Could someone refresh my memory? I bought my car with about 4,000 miles on it. Previous owner had subframe connectors, and I know who had, had a lot of $ to blow, so I am looking at other stuff. I am curious about my gears. WITHOUT opening the rear end, how can I tell what gears are inside? With my Cobra couple years ago I ran into the same problem. What I did back then was count the rotations of the driveshaft vs. the back wheel rotations. Does anyone know how many times each should be? Thanks.
Could someone refresh my memory? I bought my car with about 4,000 miles on it. Previous owner had subframe connectors, and I know who had, had a lot of $ to blow, so I am looking at other stuff. I am curious about my gears. WITHOUT opening the rear end, how can I tell what gears are inside? With my Cobra couple years ago I ran into the same problem. What I did back then was count the rotations of the driveshaft vs. the back wheel rotations. Does anyone know how many times each should be? Thanks.
02-08-2006, 08:36 PM
#2
4th Gear Member
Join Date: Jan 2006
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Posts: 1,860
RE: 4.10, 3.73, stock: how to tell?
You could do one full spin of the tire (chalk it at the bottom and push the car forward until it is back on the chalked part) and watch how many times your driveshaft moves.... If your tiers are 245/4517, then you the number of times your driveshaft moved is your gear ratio. If you have taller tires you will have to adjust. Also, what RPM are u at going 60???
02-08-2006, 08:38 PM
#3
2nd Gear Member
Join Date: Sep 2005
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Posts: 469
RE: 4.10, 3.73, stock: how to tell?
if you put you girlfriend under the car face up, then make her turn over, look at the rear end, look back at her, poke her butt... your car ill talk and tell you what is done to it.[sm=alcoholic.gif]
02-08-2006, 08:40 PM
#4
5th Gear Member
Join Date: Mar 2005
Location: Navarre, FL
Posts: 3,689
RE: 4.10, 3.73, stock: how to tell?
ORIGINAL: Octane
This might be a Noob question. oh well:
Could someone refresh my memory? I bought my car with about 4,000 miles on it. Previous owner had subframe connectors, and I know who had, had a lot of $ to blow, so I am looking at other stuff. I am curious about my gears. WITHOUT opening the rear end, how can I tell what gears are inside? With my Cobra couple years ago I ran into the same problem. What I did back then was count the rotations of the driveshaft vs. the back wheel rotations. Does anyone know how many times each should be? Thanks.
This might be a Noob question. oh well:
Could someone refresh my memory? I bought my car with about 4,000 miles on it. Previous owner had subframe connectors, and I know who had, had a lot of $ to blow, so I am looking at other stuff. I am curious about my gears. WITHOUT opening the rear end, how can I tell what gears are inside? With my Cobra couple years ago I ran into the same problem. What I did back then was count the rotations of the driveshaft vs. the back wheel rotations. Does anyone know how many times each should be? Thanks.
3 3/4=3.73
you get the drift.
02-08-2006, 09:40 PM
#5
4th Gear Member
Join Date: Jan 2006
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Posts: 1,860
RE: 4.10, 3.73, stock: how to tell?
ORIGINAL: gt96stang
3 1/4 turns=3.27
3 3/4=3.73
you get the drift.
ORIGINAL: Octane
This might be a Noob question. oh well:
Could someone refresh my memory? I bought my car with about 4,000 miles on it. Previous owner had subframe connectors, and I know who had, had a lot of $ to blow, so I am looking at other stuff. I am curious about my gears. WITHOUT opening the rear end, how can I tell what gears are inside? With my Cobra couple years ago I ran into the same problem. What I did back then was count the rotations of the driveshaft vs. the back wheel rotations. Does anyone know how many times each should be? Thanks.
This might be a Noob question. oh well:
Could someone refresh my memory? I bought my car with about 4,000 miles on it. Previous owner had subframe connectors, and I know who had, had a lot of $ to blow, so I am looking at other stuff. I am curious about my gears. WITHOUT opening the rear end, how can I tell what gears are inside? With my Cobra couple years ago I ran into the same problem. What I did back then was count the rotations of the driveshaft vs. the back wheel rotations. Does anyone know how many times each should be? Thanks.
3 3/4=3.73
you get the drift.
02-08-2006, 09:50 PM
#6
5th Gear Member
Join Date: Mar 2005
Location: Navarre, FL
Posts: 3,689
RE: 4.10, 3.73, stock: how to tell?
ORIGINAL: MustangMafia
You could do one full spin of the tire (chalk it at the bottom and push the car forward until it is back on the chalked part) and watch how many times your driveshaft moves.... If your tiers are 245/4517, then you the number of times your driveshaft moved is your gear ratio. If you have taller tires you will have to adjust. Also, what RPM are u at going 60???
You could do one full spin of the tire (chalk it at the bottom and push the car forward until it is back on the chalked part) and watch how many times your driveshaft moves.... If your tiers are 245/4517, then you the number of times your driveshaft moved is your gear ratio. If you have taller tires you will have to adjust. Also, what RPM are u at going 60???
02-09-2006, 01:45 AM
#8
4th Gear Member
Join Date: Jan 2006
Location:
Posts: 1,860
RE: 4.10, 3.73, stock: how to tell?
ORIGINAL: gt96stang
Tire size shouldn't have anything to do with it.
ORIGINAL: MustangMafia
You could do one full spin of the tire (chalk it at the bottom and push the car forward until it is back on the chalked part) and watch how many times your driveshaft moves.... If your tiers are 245/4517, then you the number of times your driveshaft moved is your gear ratio. If you have taller tires you will have to adjust. Also, what RPM are u at going 60???
You could do one full spin of the tire (chalk it at the bottom and push the car forward until it is back on the chalked part) and watch how many times your driveshaft moves.... If your tiers are 245/4517, then you the number of times your driveshaft moved is your gear ratio. If you have taller tires you will have to adjust. Also, what RPM are u at going 60???
02-09-2006, 01:47 AM
#9
6th Gear Member
Join Date: Apr 2005
Location: Wilmington, NC
Posts: 5,608
RE: 4.10, 3.73, stock: how to tell?
forget all that to much work.
http://www.tchracing.com/tech/gearcalc.php
http://www.tchracing.com/tech/gearcalc.php
02-09-2006, 01:47 AM
#10
5th Gear Member
Join Date: Mar 2005
Location: Navarre, FL
Posts: 3,689
RE: 4.10, 3.73, stock: how to tell?
ORIGINAL: MustangMafia
Ummm if the tires are taller it will take more rotations of the shaft to turn them right???
ORIGINAL: gt96stang
Tire size shouldn't have anything to do with it.
ORIGINAL: MustangMafia
You could do one full spin of the tire (chalk it at the bottom and push the car forward until it is back on the chalked part) and watch how many times your driveshaft moves.... If your tiers are 245/4517, then you the number of times your driveshaft moved is your gear ratio. If you have taller tires you will have to adjust. Also, what RPM are u at going 60???
You could do one full spin of the tire (chalk it at the bottom and push the car forward until it is back on the chalked part) and watch how many times your driveshaft moves.... If your tiers are 245/4517, then you the number of times your driveshaft moved is your gear ratio. If you have taller tires you will have to adjust. Also, what RPM are u at going 60???