Wire a two plug sensor in place and tune it for a Gt500 trans in SCT, at least that was said on tremec magnum install on 2011 mustang on youtube I watched. Just wanted to know if it is that easy or do we need to spend the $170 for a box to do that?
I don't think the getrag and tremec speedo sensors are the same though so I"m not really sure how that works. For example, you can't even reuse the reverse indicator lights plug from the getrag, the depth of the sensor is much different so I had to cut the plug off the getrag one and wire it into the tremec one.
I called cunningham motorsports about it but they were pretty rude and didn't see to know what they were talking about. Rather than dealing with that, I just got the box and wired it up. The instructions were a little vague but now that I've done it once, I would have no problem wiring it up again. It's only about 9 wires in total that you have to mess with-- 4 from the box, 3 from the harness, and 2 from the speedo pigtail.