new speedometer

[michael.hayes.1675]

Ok I just got my vortec 5.7 and 4l60e in my 77 c10. The 4l60e runs off  a 4000 ppm.  I was wanting  to know if anyone else has build a cluster like this? And what did you do for your gauges?

[bake74]

Ok I just got my vortec 5.7 and 4l60e in my 77 c10. The 4l60e runs off  a 4000 ppm.  I was wanting  to know if anyone else has build a cluster like this? And what did you do for your gauges?

     Did you mean to say ppm, or did you mean rpm ?  Just wondering because ppm to me means "parts per million", and if you meant ppm then you can teach me something, cause I do not know what that means as far as a speedometer goes.

[michael.hayes.1675]

ppm =  pulse per mile

[Captkaos]

The 89-91 R/V speedo can be used to work.
I am using a Dakota Digital Cluster though.