2014 open differentials
I have a 2014 f150 super crew xlt 4x4 with ecoboost
it has the #27 axle to my knowledge is a 3:31 open differential axle I would really like to have a locker for off road I really don’t like the one wheel spinning in mud any cost effective suggestions?
it has the #27 axle to my knowledge is a 3:31 open differential axle I would really like to have a locker for off road I really don’t like the one wheel spinning in mud any cost effective suggestions?
Least expensive option.
Press down 1 or 2 clicks on the parking brake when this happens. Does the same thing as traction control and will send power to the other wheel. Just be sure to release the brake after you get moving.
Press down 1 or 2 clicks on the parking brake when this happens. Does the same thing as traction control and will send power to the other wheel. Just be sure to release the brake after you get moving.
A locker may be too severe for daily street driving.
With a locker, if you are on the gas then the thing locks and tries to drive the wheels the same speed. Curves are an issue.
If for example you want to go up a curved hill then you are applying power and it wants to drive the wheels the same speed, but it's a curve. A Detroit Locker or other lockers in theory will allow the outside wheel to disengage and rotate faster than the inside wheel, but that's in theory. In that case then the inner wheel is the one being driven which puts a lot of stress on that one axle.
Most right turns you will probably have the inside wheel chirp.
The locking and unlocking of some lockers can be harsh. Detroit Lockers are the best and are supposed to be pretty smooth, but still it's a locker.
A limited slip may be a better choice. There are many types. One of the best is the Detroit Truetrac. It does not have friction discs that will wear out over time. It is like a Torsen.
Your truck should have a 9.75 rear axle since you have the ecoboost.
This should be the model you need, but check carefully: https://www.stage3motorsports.com/91...etrac-lsd.html
Not sure what installation would cost in your area, but with the limited slip price you will be a bit over $1000.
There are clutch type limited slips, but those aren't a big savings. Here is an example: https://www.americantrucks.com/g2-cl...-975-9718.html
Also if you look at old posts Ford used to say that our trucks have one wheel spin control. You shut off traction control and the brakes will try to slow the tire that is spinning. It's like a limited slip but using the brakes to do the job. Some say it works well, so give that a try if you run into trouble again.
Old thread for some details: https://www.f150forum.com/f38/one-wh...ontrol-153704/
Video of spin control in action:
With a locker, if you are on the gas then the thing locks and tries to drive the wheels the same speed. Curves are an issue.
If for example you want to go up a curved hill then you are applying power and it wants to drive the wheels the same speed, but it's a curve. A Detroit Locker or other lockers in theory will allow the outside wheel to disengage and rotate faster than the inside wheel, but that's in theory. In that case then the inner wheel is the one being driven which puts a lot of stress on that one axle.
Most right turns you will probably have the inside wheel chirp.
The locking and unlocking of some lockers can be harsh. Detroit Lockers are the best and are supposed to be pretty smooth, but still it's a locker.
A limited slip may be a better choice. There are many types. One of the best is the Detroit Truetrac. It does not have friction discs that will wear out over time. It is like a Torsen.
Your truck should have a 9.75 rear axle since you have the ecoboost.
This should be the model you need, but check carefully: https://www.stage3motorsports.com/91...etrac-lsd.html
Not sure what installation would cost in your area, but with the limited slip price you will be a bit over $1000.
There are clutch type limited slips, but those aren't a big savings. Here is an example: https://www.americantrucks.com/g2-cl...-975-9718.html
Also if you look at old posts Ford used to say that our trucks have one wheel spin control. You shut off traction control and the brakes will try to slow the tire that is spinning. It's like a limited slip but using the brakes to do the job. Some say it works well, so give that a try if you run into trouble again.
Old thread for some details: https://www.f150forum.com/f38/one-wh...ontrol-153704/
Video of spin control in action:
A locker may be too severe for daily street driving.
With a locker, if you are on the gas then the thing locks and tries to drive the wheels the same speed. Curves are an issue.
If for example you want to go up a curved hill then you are applying power and it wants to drive the wheels the same speed, but it's a curve. A Detroit Locker or other lockers in theory will allow the outside wheel to disengage and rotate faster than the inside wheel, but that's in theory. In that case then the inner wheel is the one being driven which puts a lot of stress on that one axle.
Most right turns you will probably have the inside wheel chirp.
The locking and unlocking of some lockers can be harsh. Detroit Lockers are the best and are supposed to be pretty smooth, but still it's a locker.
A limited slip may be a better choice. There are many types. One of the best is the Detroit Truetrac. It does not have friction discs that will wear out over time. It is like a Torsen.
Your truck should have a 9.75 rear axle since you have the ecoboost.
This should be the model you need, but check carefully: https://www.stage3motorsports.com/91...etrac-lsd.html
Not sure what installation would cost in your area, but with the limited slip price you will be a bit over $1000.
There are clutch type limited slips, but those aren't a big savings. Here is an example: https://www.americantrucks.com/g2-cl...-975-9718.html
Also if you look at old posts Ford used to say that our trucks have one wheel spin control. You shut off traction control and the brakes will try to slow the tire that is spinning. It's like a limited slip but using the brakes to do the job. Some say it works well, so give that a try if you run into trouble again.
Old thread for some details: https://www.f150forum.com/f38/one-wh...ontrol-153704/
Video of spin control in action:
https://www.youtube.com/watch?v=3on27AINjaM
https://www.youtube.com/watch?v=zrdcC7WyvG8
With a locker, if you are on the gas then the thing locks and tries to drive the wheels the same speed. Curves are an issue.
If for example you want to go up a curved hill then you are applying power and it wants to drive the wheels the same speed, but it's a curve. A Detroit Locker or other lockers in theory will allow the outside wheel to disengage and rotate faster than the inside wheel, but that's in theory. In that case then the inner wheel is the one being driven which puts a lot of stress on that one axle.
Most right turns you will probably have the inside wheel chirp.
The locking and unlocking of some lockers can be harsh. Detroit Lockers are the best and are supposed to be pretty smooth, but still it's a locker.
A limited slip may be a better choice. There are many types. One of the best is the Detroit Truetrac. It does not have friction discs that will wear out over time. It is like a Torsen.
Your truck should have a 9.75 rear axle since you have the ecoboost.
This should be the model you need, but check carefully: https://www.stage3motorsports.com/91...etrac-lsd.html
Not sure what installation would cost in your area, but with the limited slip price you will be a bit over $1000.
There are clutch type limited slips, but those aren't a big savings. Here is an example: https://www.americantrucks.com/g2-cl...-975-9718.html
Also if you look at old posts Ford used to say that our trucks have one wheel spin control. You shut off traction control and the brakes will try to slow the tire that is spinning. It's like a limited slip but using the brakes to do the job. Some say it works well, so give that a try if you run into trouble again.
Old thread for some details: https://www.f150forum.com/f38/one-wh...ontrol-153704/
Video of spin control in action:
https://www.youtube.com/watch?v=3on27AINjaM
https://www.youtube.com/watch?v=zrdcC7WyvG8
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A locker may be too severe for daily street driving.
With a locker, if you are on the gas then the thing locks and tries to drive the wheels the same speed. Curves are an issue.
If for example you want to go up a curved hill then you are applying power and it wants to drive the wheels the same speed, but it's a curve. A Detroit Locker or other lockers in theory will allow the outside wheel to disengage and rotate faster than the inside wheel, but that's in theory. In that case then the inner wheel is the one being driven which puts a lot of stress on that one axle.
Most right turns you will probably have the inside wheel chirp.
The locking and unlocking of some lockers can be harsh. Detroit Lockers are the best and are supposed to be pretty smooth, but still it's a locker.
With a locker, if you are on the gas then the thing locks and tries to drive the wheels the same speed. Curves are an issue.
If for example you want to go up a curved hill then you are applying power and it wants to drive the wheels the same speed, but it's a curve. A Detroit Locker or other lockers in theory will allow the outside wheel to disengage and rotate faster than the inside wheel, but that's in theory. In that case then the inner wheel is the one being driven which puts a lot of stress on that one axle.
Most right turns you will probably have the inside wheel chirp.
The locking and unlocking of some lockers can be harsh. Detroit Lockers are the best and are supposed to be pretty smooth, but still it's a locker.
With some ingenuity you could probably find an axle with a factory locker and make it work for $600-700, but you'd have to put in some sweat equity. Otherwise you can get aftermarket selectable lockers for under $1000, plus install.
https://www.steeda.com/yukon-yp-pf9-...4-spline-axles
https://www.drivetrainamerica.com/fo...nov-2011-2017/
Last edited by Laminar; Aug 24, 2021 at 09:44 AM.
Ditto the True Trac - It'll be probably $1100 but it's a great mod.
The Electronic braking / traction control works, it's just not in the league of a true LS.
Here's an example -
My dump trai;ler weighs 2200#, and you can load 4800# in it. Total 7000#.
On gras, or gravel, when I'd take off I got impressive one wheel peels, with the traction lights flashing on the dash.
After the True Trac, I could just take off - almost no wheel spin.
The Electronic braking / traction control works, it's just not in the league of a true LS.
Here's an example -
My dump trai;ler weighs 2200#, and you can load 4800# in it. Total 7000#.
On gras, or gravel, when I'd take off I got impressive one wheel peels, with the traction lights flashing on the dash.
After the True Trac, I could just take off - almost no wheel spin.










