stutz 712 Posted June 10, 2024 Share Posted June 10, 2024 Looking for used electronic speedometer for superliner Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/ Share on other sites More sharing options...
Geoff Weeks Posted June 11, 2024 Share Posted June 11, 2024 Something is niggling in the back of my mind that Mack used the Prestolite Treckstar speedo like IHC did. If that is true, I have a used one. I know it worked when I had it in a truck a few years ago. Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-553464 Share on other sites More sharing options...
Geoff Weeks Posted June 11, 2024 Share Posted June 11, 2024 here is a photo. Let me know if you are interested. Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-553488 Share on other sites More sharing options...
stutz 712 Posted June 11, 2024 Author Share Posted June 11, 2024 Ok thanks. Looks like the bezel is a little different Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-553511 Share on other sites More sharing options...
Geoff Weeks Posted June 11, 2024 Share Posted June 11, 2024 (edited) It's yours for the postage if you want it. Face is 4 7/8 OD fits in a 4 11/16 hole or there abouts. Dip switches on the back to adjust for tire/ratio, has extra wire for Eaton 2 spd (leave disconnected if you don't need) I has no "name" on the dial Edited June 11, 2024 by Geoff Weeks Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-553514 Share on other sites More sharing options...
stutz 712 Posted February 2 Author Share Posted February 2 Do you still have this IHC speedometer? Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568349 Share on other sites More sharing options...
Geoff Weeks Posted February 2 Share Posted February 2 yes Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568350 Share on other sites More sharing options...
stutz 712 Posted February 3 Author Share Posted February 3 Do you also have the plug for the back? Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568472 Share on other sites More sharing options...
Geoff Weeks Posted February 3 Share Posted February 3 I might, I'll have to look. Just a std Packard plug. I have an old wiring harness, I'll see what is on it. Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568488 Share on other sites More sharing options...
Joseph Cummings Posted February 3 Share Posted February 3 (edited) 50 minutes ago, Geoff Weeks said: std Packard plug Go into an auto parts store and ask for Packard 440 wire and Rajah terminals. lol. It's like that King of the Hill episode with the tap and die set and wd40 Edited February 3 by Joseph Cummings 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568491 Share on other sites More sharing options...
Geoff Weeks Posted February 3 Share Posted February 3 Ah, no Packard "56" style Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568505 Share on other sites More sharing options...
Joseph Cummings Posted February 3 Share Posted February 3 1 hour ago, Geoff Weeks said: Ah, no Packard "56" style Yeah, but they have no idea who Delphi Packard is, what they made, and that you might find "Packard" electrical components on anything Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568507 Share on other sites More sharing options...
stutz 712 Posted February 3 Author Share Posted February 3 Let me know what you need for this. Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568509 Share on other sites More sharing options...
Geoff Weeks Posted February 3 Share Posted February 3 No luck on the plug, the wiring harness I have was for an older truck with an early Motorola speedo. You can order the plug from here or many other places: https://brillman.com/product/4-cavity-packard-56-series-female-terminal-connector/?srsltid=AfmBOoqYbrEyZ8pCtYr_O9nAQ5DW_qNtIp72twqfn7Cw0comsmdrD9vId3o&gQT=2 along with terminals: https://www.zoro.com/grote-terminal-56-series-16-14-ga-pk10-84-2013/i/G9793869/?utm_source=google&utm_medium=surfaces&utm_campaign=shopping feed&utm_content=free google shopping clicks&campaignid=21460994854&productid=G9793869&v=&gad_source=1&gclid=EAIaIQobChMI3vS6kdqniwMVtzUIBR3taznaEAQYAiABEgLa4_D_BwE&gclsrc=aw.ds But I bet NAPA could get it all also. PM me with an address, it is yours for the postage. Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568513 Share on other sites More sharing options...
Geoff Weeks Posted February 3 Share Posted February 3 I no longer have the service manual with the calibration settings and wiring. You'll need the calibration settings for your application. IIRC it is set for a 16 tooth transmission "gear" and 501 rev/mile tires on a 3.73 rear gear. Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568533 Share on other sites More sharing options...
Joey Mack Posted February 4 Share Posted February 4 I wonder if my 25+ year old dip switch booklet is what he needs ?? It is a Mack Svc. Bulletin... It has a lot of info, and i used it many times to set up speedometers. 16 pulses on the tranny tail shaft is correct 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568546 Share on other sites More sharing options...
Geoff Weeks Posted February 4 Share Posted February 4 More than likely it is. I had IHC's and when I sold the trucks, the manuals went with them. I retained one parts manual and thought it had the settings, but it doesn't Should be the same for all TrekStar speedo's 16 tooth is the most common input, but there were other variations used. My '84 parts truck had a "tone ring" in one of the rear hubs. So far, I haven't heard from him where to send it, so it sits in a box. Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568570 Share on other sites More sharing options...
Geoff Weeks Posted February 6 Share Posted February 6 I got to say, this is aggravating. 7 months ago he asked about a speedo, at that time I said he could have it for free, just pay the shipping. Nothing for 7 months, than asks if I still had it. I replied again I still had it, Then he wants to know if i have the female connector, and how much. I go dig out the harness and find it isn't the right connector, but list places he can get it I again offer it for free, he pays the postage. and add in how it is currently set. Then again, I get radio silence? People ask why I don't sell my store of parts? Hell, I can't even give them away! It is getting not worth the trouble. I found a box, found some pages on the internet that would help with the wiring. And yes, I've checked, he has been on the site since my last post. I am generally free with my time, but when someone asks me a bunch of questions, and then nothing? 2 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568746 Share on other sites More sharing options...
Joey Mack Posted February 6 Share Posted February 6 GW, I feel your pain.. I have posted about it a couple of times... I know you offer your great knowledge as well as others here.. I just read what you say at times for knowledge, even if its doesnt pertain to me.. Jojo 2 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568754 Share on other sites More sharing options...
Geoff Weeks Posted February 6 Share Posted February 6 I got a bunch of stuff, mostly IHC, that when one failed, and I could track down a source, I would buy more than one, often they were being sold off as a "lot". I have things like horn button brush, that most don't have or replace, until you needed, to, then can't find them. I'd love them to go to somebody who could use them, but the hassle of selling on Faceplant or Ebay, only for somebody to want to return them, on my dime when they mis diagnosed, or just didn't want it, isn't worth the hassle. That speedo is going for anywhere around $100 and up on ebay, I can't remember what I paid for it, and I can't give it away? Kinda mind boggling! 2 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568756 Share on other sites More sharing options...
Popular Post Joey Mack Posted February 7 Popular Post Share Posted February 7 I respect you GW. If i need parts for my '48 KB. I will ask you. And you will be paid.. this truck world needs guys like you,. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568760 Share on other sites More sharing options...
Popular Post stutz 712 Posted February 7 Author Popular Post Share Posted February 7 Sorry to disappoint you all. I still work full time and work on multiple Mack side projects. I’m not intentionally trying to run people around. I may look at a post or reply and plan on replying but life happens and weeks and months can go by. Geoff Weeks, My number is 724 840 9135. If you want text me how much you want for the speedometer and shipping and where to send the money and I’ll send a check before you ship it. I know you said free on the speedometer but since I have drug my feet I will pay for it. If not I understand 3 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568771 Share on other sites More sharing options...
Joey Mack Posted February 7 Share Posted February 7 Good to see you, i have a booklet number that may be of use to you when its time to set the dip switches on the speedo.. Jojo Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568773 Share on other sites More sharing options...
stutz 712 Posted February 7 Author Share Posted February 7 Thanks JoJo I’ll let you know when the time comes. It may be a while. Thanks again 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568783 Share on other sites More sharing options...
Joey Mack Posted February 7 Share Posted February 7 🍻 1 Quote Link to comment https://www.bigmacktrucks.com/topic/74254-r-model-electronic-speedometer/#findComment-568784 Share on other sites More sharing options...
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