I can't find the gear ratio anywhere, help?
#2
08-13-2010, 06:06 PM
Cargo Master
I think that is not the axle tag with the code. My axle has two tags, one of which has the code 4L30 meaning 4.30 Limited Slip. My door tag is like yours in that it has no axle code listed. There's lots posted on the SD forum about axle codes. Unfortunately none of them were right about mine.
Can you find another tag on the axle?
Can you find another tag on the axle?
#6
08-13-2010, 10:43 PM
#7
08-14-2010, 12:54 AM
S157E means 4.10 L (4.10 limited slip). By 10-bolt I guess you mean Sterling 10.5 out of a 1999 - 2001 truck, because that's what S157E means.
ETA: better mileage isn't just a function of gearing. It's about the gearing matching the use. So, if the truck is only used to tow, has a heavy camper, runs logging roads in 4wheel drive, or is a highway rig with no load, commuter, etc. it's all going to change the equation. 4.10 might be the best thing out there for that truck, or 3.55 might be better. Or, 4.88 gears might be better still. It all depends on what that truck does eight days a week.
ETA: better mileage isn't just a function of gearing. It's about the gearing matching the use. So, if the truck is only used to tow, has a heavy camper, runs logging roads in 4wheel drive, or is a highway rig with no load, commuter, etc. it's all going to change the equation. 4.10 might be the best thing out there for that truck, or 3.55 might be better. Or, 4.88 gears might be better still. It all depends on what that truck does eight days a week.
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#8
08-14-2010, 09:15 AM
Seriously!!!! so is it a 10 bolt and will it work in my E99 4X4. BTW how idi you identify it there is another axle on a truck I found with the same deal? No door tag ID and tag does'nt lay it out clearly. Also if he is running a 5.4 would he get better mileage withe 3:73 gears?
Ford Rear Axle Assembly Identification - Page 11 - FORDification.com
Sam
#9
08-14-2010, 11:01 AM
S157E means 4.10 L (4.10 limited slip). By 10-bolt I guess you mean Sterling 10.5 out of a 1999 - 2001 truck, because that's what S157E means.
ETA: better mileage isn't just a function of gearing. It's about the gearing matching the use. So, if the truck is only used to tow, has a heavy camper, runs logging roads in 4wheel drive, or is a highway rig with no load, commuter, etc. it's all going to change the equation. 4.10 might be the best thing out there for that truck, or 3.55 might be better. Or, 4.88 gears might be better still. It all depends on what that truck does eight days a week.
ETA: better mileage isn't just a function of gearing. It's about the gearing matching the use. So, if the truck is only used to tow, has a heavy camper, runs logging roads in 4wheel drive, or is a highway rig with no load, commuter, etc. it's all going to change the equation. 4.10 might be the best thing out there for that truck, or 3.55 might be better. Or, 4.88 gears might be better still. It all depends on what that truck does eight days a week.
BTW
Thanks for the Link Sam
#10
08-14-2010, 01:59 PM
3.73 will likely give better mileage; however, the cost to change the gears would buy a lot of gasoline. Call around, but I'm guessing you'll be at $500 - $750 if it's a 2 wheel drive for parts and installation. If you save 2mpg by going to a 3.73 ratio yeah, you'll be saving some money everyday, but it'll take a while to see a $500 difference between the 4.10 and 3.73 mpg overall.
I know this sounds counter-intuitive, but another way to accomplish the same thing is when the tires wear out buy a size 5% - 10% taller/heavier.
I know this sounds counter-intuitive, but another way to accomplish the same thing is when the tires wear out buy a size 5% - 10% taller/heavier.
#11
08-14-2010, 02:54 PM
3.73 will likely give better mileage; however, the cost to change the gears would buy a lot of gasoline. Call around, but I'm guessing you'll be at $500 - $750 if it's a 2 wheel drive for parts and installation. If you save 2mpg by going to a 3.73 ratio yeah, you'll be saving some money everyday, but it'll take a while to see a $500 difference between the 4.10 and 3.73 mpg overall.
I know this sounds counter-intuitive, but another way to accomplish the same thing is when the tires wear out buy a size 5% - 10% taller/heavier.
I know this sounds counter-intuitive, but another way to accomplish the same thing is when the tires wear out buy a size 5% - 10% taller/heavier.
#13
08-14-2010, 04:41 PM
If the truck is going to be a DD and never do anything more than that, maybe some highway trips (light), then the 3.73's would be OK. But, that said, a 5.4L in a super duty is a bit on the under powered side. Because of that, the 4.10's would be better.
This was my original goal - find a CC 4x4 super duty with a 5.4L V8 and 4.10's. I quickly learned that was an odd-ball combo and landed with a 6.4L. The 4.10's would make the 5.4L more useable in my book. The fuel mileage will still not be that great, maybe 14-15 at best, but the lower gearing will give it enough torque to work, at least more than 3.73's, when you need it to.
Another side note - don't be affraid to crank some RPM's if you need to. Thats how those engines generate power, at the cost of fuel consumption
If your nephew isn't using his truck much maybe a 1/2 ton would be a better option? My 2003 chevy 1500 has lasted me 6 years and has been a good truck. For the most part it has done everything I've needed it to on a daily basis. I have run in to several situations hauling and towing where it doesn't hold up too well, but if you're not going to see that type of service its a non-issue. Ford's 5.4L would be a great option in the 150 - it is a time-tested engine.
The difference could be approaching 2000lbs difference between a 150 and 250 - thats like driving around in a 150 with a ton of dirt or maulch in the bed... something to think about with that 5.4L... You do get a more robust 5 speed transmission with the super duty, but it all comes down to the same power plant.
This was my original goal - find a CC 4x4 super duty with a 5.4L V8 and 4.10's. I quickly learned that was an odd-ball combo and landed with a 6.4L. The 4.10's would make the 5.4L more useable in my book. The fuel mileage will still not be that great, maybe 14-15 at best, but the lower gearing will give it enough torque to work, at least more than 3.73's, when you need it to.
Another side note - don't be affraid to crank some RPM's if you need to. Thats how those engines generate power, at the cost of fuel consumption
If your nephew isn't using his truck much maybe a 1/2 ton would be a better option? My 2003 chevy 1500 has lasted me 6 years and has been a good truck. For the most part it has done everything I've needed it to on a daily basis. I have run in to several situations hauling and towing where it doesn't hold up too well, but if you're not going to see that type of service its a non-issue. Ford's 5.4L would be a great option in the 150 - it is a time-tested engine.
The difference could be approaching 2000lbs difference between a 150 and 250 - thats like driving around in a 150 with a ton of dirt or maulch in the bed... something to think about with that 5.4L... You do get a more robust 5 speed transmission with the super duty, but it all comes down to the same power plant.
#14
08-14-2010, 05:03 PM
If the truck is going to be a DD and never do anything more than that, maybe some highway trips (light), then the 3.73's would be OK. But, that said, a 5.4L in a super duty is a bit on the under powered side. Because of that, the 4.10's would be better.
This was my original goal - find a CC 4x4 super duty with a 5.4L V8 and 4.10's. I quickly learned that was an odd-ball combo and landed with a 6.4L. The 4.10's would make the 5.4L more useable in my book. The fuel mileage will still not be that great, maybe 14-15 at best, but the lower gearing will give it enough torque to work, at least more than 3.73's, when you need it to.
Another side note - don't be affraid to crank some RPM's if you need to. Thats how those engines generate power, at the cost of fuel consumption
If your nephew isn't using his truck much maybe a 1/2 ton would be a better option? My 2003 chevy 1500 has lasted me 6 years and has been a good truck. For the most part it has done everything I've needed it to on a daily basis. I have run in to several situations hauling and towing where it doesn't hold up too well, but if you're not going to see that type of service its a non-issue. Ford's 5.4L would be a great option in the 150 - it is a time-tested engine.
The difference could be approaching 2000lbs difference between a 150 and 250 - thats like driving around in a 150 with a ton of dirt or maulch in the bed... something to think about with that 5.4L... You do get a more robust 5 speed transmission with the super duty, but it all comes down to the same power plant.
This was my original goal - find a CC 4x4 super duty with a 5.4L V8 and 4.10's. I quickly learned that was an odd-ball combo and landed with a 6.4L. The 4.10's would make the 5.4L more useable in my book. The fuel mileage will still not be that great, maybe 14-15 at best, but the lower gearing will give it enough torque to work, at least more than 3.73's, when you need it to.
Another side note - don't be affraid to crank some RPM's if you need to. Thats how those engines generate power, at the cost of fuel consumption
If your nephew isn't using his truck much maybe a 1/2 ton would be a better option? My 2003 chevy 1500 has lasted me 6 years and has been a good truck. For the most part it has done everything I've needed it to on a daily basis. I have run in to several situations hauling and towing where it doesn't hold up too well, but if you're not going to see that type of service its a non-issue. Ford's 5.4L would be a great option in the 150 - it is a time-tested engine.
The difference could be approaching 2000lbs difference between a 150 and 250 - thats like driving around in a 150 with a ton of dirt or maulch in the bed... something to think about with that 5.4L... You do get a more robust 5 speed transmission with the super duty, but it all comes down to the same power plant.
Also
BTW thanks for the link for the Dana 50 ring & pinion. I had no idea.
