Blue Chips
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I have a 2023 F-150 XLT Supercab 3.5L Ecoboost 4x4 with a 3.31 9.75” 34-spline open-differential rear axle, and I’m considering retrofitting a Ford OEM electronic locking differential. Has anyone on the forum done that, or does anyone know exactly what would be involved?
It appears there may already be an e-locker cable to the rear axle, with its connector attached to a blank ‘holder’ on a bracket on the axle tube, right next to the differential housing. Regarding needed changes for the retrofit, a hole would be required in the differential housing to accommodate the pass-through connector for the e-locker coil, as well as a smaller, threaded hole for the connector mounting screw. Does anyone know if there are any other physical differences between the open-differential housing and the housing with a factory-equipped 9.75 with e-locker?
The mode selector switch would have to be changed to the version with a push-button e-locker function in the selector knob, and I think that the TCCM for e-locker-equipped trucks might be different from the TCCM for open differential models.
I would also like to know what (if any) module values would have to be programmed for the system to recognize a retrofitted Ford OEM e-locker and operate it in the same way as a factory-equipped e-locker. Or could it be just a matter of making the necessary connections with a new mode switch and TCCM module, then resetting the new TCCM, or ? (Note: I posted my inquiry to the FORScan forum already).
I just got an extended FORScan license and bought an OBDLink EX FORScan adapter. I haven’t tried using FORScan yet, since I want to read up on it before playing with it, but it looks like it could be very useful.
I’m familiar with several types of e-lockers and limited-slip differentials (both Torsen and clutch type) as I’ve owned 14 different 4x4 vehicles over the past 50+ years with a variety of traction options, and I’ve put in a LOT of back-country driving time, having lived in Utah for over 35 years, plus 15+ years in rural Maine, as well as time in other locales. Let’s just say that there are a number of situations where I would like the option of a driver-selectable locking differential.
It appears there may already be an e-locker cable to the rear axle, with its connector attached to a blank ‘holder’ on a bracket on the axle tube, right next to the differential housing. Regarding needed changes for the retrofit, a hole would be required in the differential housing to accommodate the pass-through connector for the e-locker coil, as well as a smaller, threaded hole for the connector mounting screw. Does anyone know if there are any other physical differences between the open-differential housing and the housing with a factory-equipped 9.75 with e-locker?
The mode selector switch would have to be changed to the version with a push-button e-locker function in the selector knob, and I think that the TCCM for e-locker-equipped trucks might be different from the TCCM for open differential models.
I would also like to know what (if any) module values would have to be programmed for the system to recognize a retrofitted Ford OEM e-locker and operate it in the same way as a factory-equipped e-locker. Or could it be just a matter of making the necessary connections with a new mode switch and TCCM module, then resetting the new TCCM, or ? (Note: I posted my inquiry to the FORScan forum already).
I just got an extended FORScan license and bought an OBDLink EX FORScan adapter. I haven’t tried using FORScan yet, since I want to read up on it before playing with it, but it looks like it could be very useful.
I’m familiar with several types of e-lockers and limited-slip differentials (both Torsen and clutch type) as I’ve owned 14 different 4x4 vehicles over the past 50+ years with a variety of traction options, and I’ve put in a LOT of back-country driving time, having lived in Utah for over 35 years, plus 15+ years in rural Maine, as well as time in other locales. Let’s just say that there are a number of situations where I would like the option of a driver-selectable locking differential.
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