Slapperbar
Retired Navy NDT Examiner
I R HT. Arcing and Sparking means work gettin' done. 


Ben B. said:I have a perfect working condition factory tach in my '78 K10.
It's even on my original build sheet.
Yup..original build sheet. lol
Somehow I managed to find a K10, in awesome condiiton, with 26k on it in PA.
Original '78 owners manual, build sheet, etc.
HEAVY METAL said:i had the tach one... sold it for 200.00......
replaced with this....

azblazer said:Dyeager....didn't see any in the calgary pick apart io visited a few weeks back. Still looking for the golden goose....90-1 RPO 8A8...electronic speedo with tach....although mr 73 needs to email some pics of what he created as i have a pile of parts to do what he did with the C60 tach and air psi gauage....
DW
sandawgk5 said:I will get a pic of the back of my speedo I dont need a 100MPH speedo but why not.
I got ahold of Necromancer on the 67-72 chevy trucks board. He has a signal generator and the schematics. He calibrated it and replaced a resistor on the board. Apparently the type of resistor GM used leaks electrolyte as it ages and changes the resisitance. He can also recalibrate to a different range of tach mine started as 5K and is now a 7K.
Ira




Then try not to break the bank!





73k5blazer said:I have a 4000rpm tach/fuel from a C60, but it's broke. I'm gonna send it out to fix.