- Location
- Aurora, Colorado
Part 5
I received my Superlift Truspeed unit a few days ago. I installed the device yesterday, and wanted to provide an update.
Overall, the unit seems decent. From what I can tell, it’s a sealed plastic box with 4 wires coming through the side. 4 screws hold the two halves together. I imagine removing the sticker and the 4 screws would void the warranty, so no inside images. Final hit was a little over $200.

I wanted to mount it somewhere where I could easily access it, I could keep it away from weather, and somewhere close to the front, so I would not have to run additional wiring. I chose to place it inside the panel underneath the steering wheel. This would allow me to mount my + / - somewhere behind the dash. Also, the wire I need to splice into could easily be accessed through the firewall, and into the engine bay.

My 1997 XJ’s wire that runs from the sensor is WT/OR (White with an orange stripe). Knowing this wire routes to the PCM, and comes from the T-case; I was able to find the correct wire loom. You can see it in this image, to the left of my Viair compressor - The medium-sized loom, of the three present, with the split I made in it.


Cut, splice, solder, heat shrink wrap and tuck back in. For those who don’t know anything about this unit - the signal routes from the T-case into the Truspeed Recalibrator, out and back into the PCM. The green wire is the input from the sensor, and the yellow is the output to the PCM. Here it is all velcroed, cleaned up and what not.

It’s really easy to adjust. I was able to determine my speedometer reading incorrectly by 15%. A quick few turns with the adjustment screw and it was back to normal. GPS and vehicle with correct speedometer reading comparisons prove my Jeep is now accurate.
:cheers:
Scott
I received my Superlift Truspeed unit a few days ago. I installed the device yesterday, and wanted to provide an update.
Overall, the unit seems decent. From what I can tell, it’s a sealed plastic box with 4 wires coming through the side. 4 screws hold the two halves together. I imagine removing the sticker and the 4 screws would void the warranty, so no inside images. Final hit was a little over $200.

I wanted to mount it somewhere where I could easily access it, I could keep it away from weather, and somewhere close to the front, so I would not have to run additional wiring. I chose to place it inside the panel underneath the steering wheel. This would allow me to mount my + / - somewhere behind the dash. Also, the wire I need to splice into could easily be accessed through the firewall, and into the engine bay.

My 1997 XJ’s wire that runs from the sensor is WT/OR (White with an orange stripe). Knowing this wire routes to the PCM, and comes from the T-case; I was able to find the correct wire loom. You can see it in this image, to the left of my Viair compressor - The medium-sized loom, of the three present, with the split I made in it.


Cut, splice, solder, heat shrink wrap and tuck back in. For those who don’t know anything about this unit - the signal routes from the T-case into the Truspeed Recalibrator, out and back into the PCM. The green wire is the input from the sensor, and the yellow is the output to the PCM. Here it is all velcroed, cleaned up and what not.

It’s really easy to adjust. I was able to determine my speedometer reading incorrectly by 15%. A quick few turns with the adjustment screw and it was back to normal. GPS and vehicle with correct speedometer reading comparisons prove my Jeep is now accurate.
:cheers:
Scott
Last edited: