I have a 6 month old MSD window switch for sell, I have since upgraded and don't have a use for it anymore.. Retail thru Jeg's is like $110.00 for the digital window switch it is super easy to use and calibrate to work with our trucks all you'd have to add would be the MSD pickup wire that goes to the coil (ground) to get the rpm from the closest coil wire..

Asking price is $80.00
the part that you'd also need to make this work is :MSD Tach Signal GMR Pickup: PN 121-8918 $35.00 bought from JEGS.com
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