Re: My tach install thread
 

That is a 5K tach that is a direct replacement for the factory tach. It does not need any modification to install.

Take care,
Tom

Re: My tach install thread
 

I have used the same tach and used two factory back plates to make one. The result was as close to looking factory as you can get. I know a lot of you are not worried about the back side.

Also the chrome plate and lens on the Sun tach front does come off to give more of a factory appearance.

Good idea making the adapter plates for easy installation. You have done your homework well ;)

Take care,
Tom

Re: My tach install thread
 

Looking for some info on the overspeed hole. It appears as though the light socket may be a bigger diameter? My bulb holder does not fit in the overspeed hole location. Anyone have any confirmation of this? I am making mods to my tach bracket for this hole and need to know what size to make the hole. Currently i will make it the same as the other light socket hole, but am thinking it may need to be bigger. Hopefully one of you members can help me out. Thanks Guys

Re: My tach install thread
 

Anybody anybody?

Re: My tach install thread
 

Does your truck actually have the over speed indicator and is it wired in the light harness?

I believe (not 100% sure) that the only trucks that used over speed were the C-40 / C-60's.

I have restored over 50 of these clusters over the years and from what I can tell, if the cluster was in a C10 - C30, the hole is covered with tape. I have never seen a harness as of yet with the actual over speed light socket attached.

If the socket hole is a different size, it is hard to see by looking at it. Do you have a photo of what you are working with?

Hope this helps,
Tom

Re: My tach install thread
 

I have the deluxe gauges and it did have tape over it. I cant find any pics of a harness with that socket in place. I was actually just trying the turn signal socket in that hole and its too small. The overspeed hole appears bigger. Im not sure a pic would do anything as they are all the same as far as i know. I was hoping a fellow member had a picture with an overspeed light socket and a dimension of it.

Re: My tach install thread
 

ttt

Re: My tach install thread
 

ttt, anyone?

Re: My tach install thread
 

Dry fitted the bracket I received on my gauge cluster. Curious why the outer edge was left with this arching shape leaving an overhanging lip sticking out, instead of shaping it to the contour of the gauge cluster's shell?

Those who have purchased this, did you have to trim this before installing the cluster back into the dash?

Re: My tach install thread
 

That extra material was not a problem for mine and any of the other guys that have bought them from me. I am not all that great with CAD yet and haven't designed it to be flush. I had no clearance issues, so i left it round.

Re: My tach install thread
 

Ok I'll just trim it off. It seemed like it might be protruding out a bit far when it comes time to installing and I don't want to risk scratching the newly painted dash. Maybe the reshaped edge can be your version 2.0. That's just my creative input since this is a new design, not meant to bag on your design.

Re: My tach install thread
 

Anyone have any info on the overspeed hole? Look back to my post #83. Thanks

Re: My tach install thread
 

Anyone have any info on the overspeed hole? Look back to my post #83. Thanks

Re: My tach install thread
 

Anyone have any info on the overspeed hole? Look back to my post #83. Thanks

Re: My tach install thread
 

Is anyone using the Bosch Retro Tach with an MSD ignition? I'm curious if the tachs still operate correctly with multi spark ignitions.

Re: My tach install thread
 

Are you going to make these to fit 63 instrment clusters?

Re: My tach install thread
 

In looking at the thread, do not see stans65. I asked to buy a while ago. Am I on the unpublished list?

Re: My tach install thread
 

FYI, I have just installed a Pertronix pointless distributor system 1162A with a Pertronix Flamethrower coil 40511. Called Bosch to make sure the FST8050 retro tach would work with it. They said tach needs a 5 volt square wave on neg. Called Pertronix and they said it puts out a modified square wave. Bottom line, will not work but I could try.

Was looking forward to installing a tach in my dash, looks like I will have to make room for someone else on your list, unless someone has a solution.

Re: My tach install thread
 

Stans65 please see post #63 in the for sale thread

Re: My tach install thread
 

Good info on the square wave signal Stans65, I'm not at all familiar with what distributors will work and what won't. I have a Mallory pointless and i actually don't know if it works because my engine isn't running yet.

Re: My tach install thread
 

63frankintruck, i need pics and your cluster if you want me to look into this. If anyone has a 60-63 cluster that can be without it, or a spare, let me know. I may be able to make a bracket for these years also.

Re: My tach install thread
 

Anyone see my post #83? Still looking for info on the overspeed hole size.

Re: My tach install thread
 

ttt

Re: My tach install thread
 

In my cluster the overspeed hole is the same diameter as all of the other light holes.

Re: My tach install thread
 

I would like to know if the light socket is the same. None of my "deluxe gauges" harness sockets fit it.

Re: My tach install thread
 

63frankintruck, do you still want me to look into making a bracket?

Re: My tach install thread
 

What exactly are you looking for measurement wise? I have 3 or 4 clusters.
If you make a bracket for 63 what is the cost?
Also, I have not been on forum for a while. ( busy with home remodel)
Are you the guy that restores clusters?

Re: My tach install thread
 

I just need a cluster shipped to me. Ill proly have it for a several months too. Cost to you 63frankintruck is just whatever it costs to ship to me. I want some pictures first, then i will ask for certain measurements to see if feasible, then you can proly ship it to me if i think i can do it. Post up a pic of the front and the back first tho.

Re: My tach install thread
 

Can anyone comment on the clusters for the early years, are they all the same?

Re: My tach install thread
 

Update on the Overspeed hole size. The information that I was looking for was right in front of me. The hole size in the cluster stamping is 3/4"

Re: My tach install thread
 

And the hole for the light socket is actually 5/8". So i will be making an adjustment in my bracket to actually hold a light socket. I just missed it lol

Re: My tach install thread
 

rideblue00 sent you a PM

Re: My tach install thread
 

Here is pics of my 63 cluster

Re: My tach install thread
 

Is there a preferred location for the tachometer, L or R? Based on the backside, im guessing the right side as you look at the speedometer face, just cuz the way that the cluster housing is stamped. Looks like it would be where the reproduction tach would go.

Re: My tach install thread
 

Does anyone have a 60-63 cluster with a Tachometer in it? I would like some closeup pics of the front and back please. Im very interested in trying to design a bracket for this cluster.

63frankintruck, im still interested in getting this up and going.

Re: My tach install thread
 

So here is a pic of my updated bracket. I have reduced the size of the right side hole to accept a stock harness light socket. It is the "overspeed" hole.

Re: My tach install thread
 

Are you guys that bought my bracket using the Bosch FST8050 Retro Tach? Im curious if anyone has cut the chrome face off of it and what it looks like afterwards. I designed the bracket to fit the tach in place without cutting it apart.

Re: My tach install thread
 

The Bosch/Sunpro FST8050 Chrome cup is removable. Does not have to be cut off. Just purchased one off eBay. Very nice. Let me know if your bracket will fit. No rush as I have the front suspension out for a rebuild.;)

Re: My tach install thread
 

Oh it fits, i have a for sale thread for these brackets.

Re: My tach install thread
 

pwrbrkpadguy, have pics of this tach yet?