Base -> TC -> Base -> TC... August 02, 2006, 02:46:28 AM Well, here's how it happened. A few years ago I switched from my standard Base Digital cluster to an '85 TC cluster. (You know, the one with the 24lb boost gauge?) Well, like a moron, when I hooked it up, I hooked up the stock oil switch wire to where the sending unit was supposed to go and basically I ended up ruining that part of the cluster. That's besides the fact that tha odometer wasn't working.Anyway, after a couple months I switched back to a base cluster, thinking the color change mod would work, but alas, it eventually faded back to the stock green color. Now I'm in posession of another '85-'86 TC cluster. I'm about to switch it in (leaving the incompatible oil pressure wire disconnected.)So, what I'm wondering is if there have been any developments in the whole 4cyl-to-8cyl tach modification for the older ('85-'86) clusters. Joe? (Bondocougar) Have you been messing with the electronics at all lately? I know you can use a resistor to make the newer TC clusters work, but I didn't know if anything similar could be done to change the pulse rate for the tach to read correctly on this one. Any ideas? Quote Selected
Base -> TC -> Base -> TC... Reply #1 – August 02, 2006, 09:24:31 PM I would think you could do a similar thing, but I don't have any buttstuffog clusters around here to play with; I've only messed with the digital clusters. Quote Selected
Base -> TC -> Base -> TC... Reply #2 – August 02, 2006, 10:09:20 PM It seems to me that there must be a way to modify the early buttstuffog clusters. I mean, don't they all operate the tach on the same system of pulses? It would seem like there must be a place somewhere inside to stick a resistor on. Quote Selected
Base -> TC -> Base -> TC... Reply #3 – August 02, 2006, 10:21:57 PM Well B I do recall Chuck mentioning that the clusters had pots on the back? Or was that for the 83 84? Quote Selected
Base -> TC -> Base -> TC... Reply #4 – August 02, 2006, 10:27:28 PM Pots? Meh. What meanest thou by pots? Quote Selected
Base -> TC -> Base -> TC... Reply #5 – August 02, 2006, 10:30:19 PM Pots = potentiometers, aka variable resistors you tweak with a screw driver. Quote Selected
Base -> TC -> Base -> TC... Reply #6 – August 02, 2006, 10:41:23 PM Ahhh, I remember seeing those years ago when I used to, as a boy, tear apart old VCR's, stereo's and whatnot. Quote Selected
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