Originally Posted by
skandolis
thanks guys, i guess i should have been more clear about what im asking, i do have the little yellow speed buffer on the back of the speedometer. What signal (ppm) comes out of this? i have a drac from the truck that supplied the pcm. i guess basically i would like to run it into the drac in order to use jumpers to "correct" the signal going into the pcm, so at least the pcm would see the right speed. (speedo is off by about 40 percent or so(reads 35 or so close to 60 mph) due to my inability to locate the proper drive gears in the tailshaft for the 2.56 gears in the rearend.)
i do have the parts to convert the trans to electric speedo, but i spent a lot of time getting the third gen camaro dash to fit, would like to keep it if possible.
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