Hey Tempest67 . .
So . .. . I drive a 69 Nova - 250ci / 6 , and March 2018 installed a Borg Warner
T 5 trans (behind my six) . . . . but still using my stock 69 mech. speedo.
My T 5 was from a 93 GMC S-15 (2.8 V6 motor) . . . and had the electric speedo
- - VSS sensor . So, I "ponied - up" and bought the "SpeedBox from Speed Hut" .
Converts u'r mech speedo to work with u'r VSS drive output . . . . . . kinda .
# 1 - - Speed Box unit ;
# 2 - - only using my GPS antenna , VSS sensor on the trans , is not
even hooked - up . Checked reading against a 'smart phone - GPS app' . . . reads
very close (maybe 150 / 175 feet off) .
magnetic GPS antenna 'stuck on the cowl screen' .
# 3 - -
cheaper than new gauges . . . . . . works for me (really works pretty good ) .
just FYI . . . . "Speed Hut.com" .
. . . . . and, I like u'r truck . . . . . jim