I've got an extra one I'll sell for $100 including shipping I know it works is was in my blazer, also includes the tach wiring harness.
<font color=green>Ryan</font color=green>
<font color=red> 84 pickup 454/400/208 <font color=red>
<font color=blue>79blazer 400/ 350/205/8"springs 39.5 swampers 60/14]