Re: 67-72 Electric speedo
 

We'll, looks like the tach will fit with just notching the speedo backer plate for the tach indexing tab on that side. So far got the faceplate for the speedo made up and the S10 speedo mounted. Zeroing the odometer was fun. Found you had to rotate one barrell at a time while putting back pressure on the silver tab for that barrel, until it rotated back one notch at a time,all while holding the other barrels and tabs still, then put the lock strip back on the tabs. Kinda like doing a rubics cube, lol. Still have to remove the speedo numbers off the new tach lens and put the sticker on for painting. Tommorrow. Night. Jim

Re: 67-72 Electric speedo
 

Jim,
Where did you buy your tach kit? How much did it run you? Did you have to have your pcm reflashed to get the right signal to operate it?
I still need to get one myself

Re: 67-72 Electric speedo
 

Bought it from forum member VA72C10, Jonathon.Couple months ago. Brand new kit, but I'm getting to old to remember more than a couple months. Bought it back in July. Must have deleted my messages to make room, because it aint there anymore. Sorry. I have HP Tuner software on my laptop so I'll change the tach resolution setting as required.

Re: 67-72 Electric speedo
 

I'd like to buy a cover box and plate if they are still avaiable. Nice work dan!! Now I just need to get off my butt and do mine.

Re: 67-72 Electric speedo
 

Hi Dan, parts coming from eric, and would like to order a plate and cover $30.00? No rush at all, just let me know. Thanks Brian Fuller

Re: 67-72 Electric speedo
 

It's almost done.Just got to modify the needle and wire it up and paint all the faded needles.It does work with the reproduction tach. I had to clearance the cover box for a tach mount flange and screw. Dremel tool came in real handy. My paint came out good, but slightly darker. Didn't have anymore white, so I'll live with it.

Re: 67-72 Electric speedo
 

More

Re: 67-72 Electric speedo
 

Just found this thread when trying to decide what with the speedo after getting a 4L80. I'll gladly buy your kit and thanks for sharing your work with us ls1nova! I won't be ready to do this until next winter now but I'm sure others will find out about this later on too. So I'll try and remember to PM you next year or if the decal/stencil won't deteriorate in a years time I'm okay with going on your next order if that's sooner.

Re: 67-72 Electric speedo
 

Getting closer, just have to find the wired light sockets, install the led high beam indicator and attach all the wires.

Re: 67-72 Electric speedo
 

More. The counter weight from the C20 speedo needle, after pressing out the little brass center, fits well over the black plastic center of the S10 needle, and after grinding down the plastic to a small circle At the end, fits inside the C10,20 needle cup. This helped center it and hold it upright while epoxy hardened. Also folded over the little tabs.

Re: 67-72 Electric speedo
 

More pics

Re: 67-72 Electric speedo
 

Wish could load more than one pic at a time.

Re: 67-72 Electric speedo
 

67C10rustbuket, on you mount bracket, I would recommend you slot the initial three holes you use to mount to gauge console. I missed a step from LS171Nova, where you verify the speedo is centered. Mine came out too far to the right. Unfortunately, I already drilled all the other holes before I checked. Slotting those 3 holes would allow repossissioning the mount before drilling the rest of the mount holes. Otherwise, worked great and definitely glad I went this way. Thanks. Jim
Slot these 3 holes.

Re: 67-72 Electric speedo
 

Looks good, I will put mine back together and check the gauge center alignment. When I designed the plate I went off the needle center and combined the hole patterns so It SHOULD be exacttly where the original speedo needle was. The problem with slotting the mounting holes is I would have to slot most of the holes and then it would be less rigid. I made it pretty thick to make sure it was rigid. If there is an alignment issue I will fix it and replace them all. There is a (very) small chance that there was some drift when those were punched on the old turret press. I checked the plates I have at home with my template and they are all dead on. If mine is properly aligned and yours is not I can replace yours or make a special plate and offset the holes for you.


To others: I know several are waiting on me to finish boxes and I have yet to finish them. I have been swamped at work with our new machinery and filling engineer requests. I will try to get them done asap, hopefully the big guys leave me alone today so I can work on them ;).

Re: 67-72 Electric speedo
 

I expect it was due to the reproduction gauge housing and back tin. It didn't want to lineup with the new glass or the new console face that it mounts to. Minor adjustment and all is fixed. I just need to pay attention to the procedure steps. Good product anyways. Thanks again for making these. Jim

Re: 67-72 Electric speedo
 

Glad to hear you haven't given up on us :lol:

Re: 67-72 Electric speedo
 

Are you using an 8k rpm tach?

Re: 67-72 Electric speedo
 

BigRed76, yes, it's an 8k reproduction tach. Jim

Re: 67-72 Electric speedo
 

I thought it looked a little different. Are the numbers and letters on the gauge lense just like the originals? All of the repro 8k tach kits I've seen have lettering on the gauge lense that's different from the original style.

Re: 67-72 Electric speedo
 

Don't know about originals. Never had one or looked at one long or close enough to remember what they looked at. Next time I'm in my shop I'll get a better pic and post it. Jim

Re: 67-72 Electric speedo
 

Thanks

Re: 67-72 Electric speedo
 

Just a quick question, did you pull the lights out of a gauge bezel from a '65 or did you find a place online you can get them from? I'd like to use those too, so wondering where to grab them. Thanks!

Re: 67-72 Electric speedo
 

Yeh, Me too. Haven't been able to find any anywhere. Last major hurdle to putting it in the truck. That and some free time. Sorry BigRed, it's going to be a while before I can get that pic of the tach. Back at work. Jim

Re: 67-72 Electric speedo
 

Yes I got them off of a truck at the pick n pull. I've never looked for new ones, but I'm sure someone makes them since they make harnesses for all kinds of cars and this kind of socket dates back to the late 20's or so. Ill do some checking and let you know what I find out.

Re: 67-72 Electric speedo
 

Did a quick interweb search and found these. I've never used this company, so I know nothing about them, but this looks like the socket that will work. http://www.classictruck.com/product/...llaneous_Items

Re: 67-72 Electric speedo
 

I am going to use these. wired twist lock 194/168 sockets. Just like original but wired. They are not self grounding but the twist lock is the correct size for easy install. They are LED compatible or use original bulbs.

http://www.superbrightleds.com/morei...ket/1150/2737/

Re: 67-72 Electric speedo
 

...

Re: 67-72 Electric speedo
 

Thanks guys> Jim

Re: 67-72 Electric speedo
 

pm sent

Re: 67-72 Electric speedo
 

To who? If I can answer any questions just let me know.

Re: 67-72 Electric speedo
 

ls1nova, this is an awesome thread... I haven't seen one like this in a long time in any of the forums I'm a member of. I'm sure the question has been asked before, but is kinda hard reading through 270+ posts; have you guys nailed down this type of retrofitting for the 73-87 trucks? just wondering, thanks in advance, I love seeing people make their ingenuity flourish.

Re: 67-72 Electric speedo
 

Haven't messed with a '73-'87, but then there's really no reason to since you can get the cluster out of a '88-90 Blazer or Suburban since they are the same and come with electric speedometers. The only real down side is that they are only 85mph speedos.

Re: 67-72 Electric speedo
 

that is such a good idea, i am excited to go to the yard soon just for this lol

Re: 67-72 Electric speedo
 

Sorry if I missed it on here but is anyone using LED lamps instead of bulbs for the gauge back lighting? If yes, where are you getting them ? part numbers? thanks

Re: 67-72 Electric speedo
 

plate and box still for sale?

Re: 67-72 Electric speedo
 

Hi Been watching short time. You guys are doing some cool things . like to put the s10 speedo in 70 c10 if you can help or can send the tin ..

I'm interested in a kit if there is any available?:

Re: 67-72 Electric speedo
 

I don't do complete dash clusters, but I do have a couple of the speedo face and number stencil stickers left. PM sent

Re: 67-72 Electric speedo
 

Nobody order these. I ordered them and they're too small for a 67-72 cluster. They do fit a squarebody cluster though so I'll probably keep them. Anyone know what part number will fit, and have both power and ground wires?

Re: 67-72 Electric speedo
 

Take a look here for info on the plate and box for this conversion.

http://www.67-72chevytrucks.com/vboa...21#post6701421

Re: 67-72 Electric speedo
 

Thought I'd update this thread. Since CaptainFab is contemplating making the mounting plates and cover boxes, he PMd me and said people were concerned with the availability of the face and stencil stickers. Just to let anyone who is interested know, I will still be selling them. I don't have any at the moment, but just put in another order and should have them in a couple of weeks or less.

Thanks.