73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Interior & Equipment => Instrumentation => Topic started by: jim.clark.52687506 on February 19, 2015, 12:18:55 pm

Title: changing guage cluster to one with a tach
Post by: jim.clark.52687506 on February 19, 2015, 12:18:55 pm
I recently purchased an 84 K2500. Is there any way to change the gauge cluster with one that it eliminates the clock and puts a factory tachometer to the right of the speedometer where the fuel gauge is now? I see that  one aftermarket place has all the pieces to do it but what am I going to run into with the wiring?
Title: Re: changing guage cluster to one with a tach
Post by: Captkaos on February 19, 2015, 07:31:07 pm
there is a post one here detailing it, but you would need to provide wiring to the setup.
If you get a 78-up cluster with a tach in it you can trace the wiring and swap out what you have to match IF they are different (most are not).  Any other years will require more work.

Check this post for adding:
http://forum.73-87chevytrucks.com/smforum/index.php?topic=28547.msg238352#msg238352

You can also search the forum.  If you put something like "tach cluster site:73-87chevytrucks.com" in google search the forum is indexed to it.
Title: Re: changing guage cluster to one with a tach
Post by: Irish_Alley on February 19, 2015, 08:41:11 pm
your looking at close to $200 or more for a correct cluster with a tach on ebay. seams most that i see are pre-77. i ended up snagging one up for $150 but its the old style and i want to put it in my 91 with a electric speedometer. so its going to be all fun cutting up everything
Title: Re: changing guage cluster to one with a tach
Post by: roundhouse on February 19, 2015, 10:28:44 pm
Someone sells new fuel gauges with a large tach and a small fuel gauge at the bottom

For less than the used  probably non functional 40 year old stock ones


Sent from my iPhone using Tapatalk
Title: Re: changing guage cluster to one with a tach
Post by: Irish_Alley on February 19, 2015, 11:06:13 pm

(http://gmsports.com/sites/default/files/field/image/8-24-10.preview_0.jpg) (http://www.gmsports.com/content/new-tachometer-1973-1986-chevy-and-gmc-trucks)
Title: Re: changing guage cluster to one with a tach
Post by: jim.clark.52687506 on February 20, 2015, 07:41:24 am
I likevthat A LOT. I think I will try one of those above. Will that fix the problem of the fuel guage going all the way past F to the 3 o clock position when it's full?
Title: Re: changing guage cluster to one with a tach
Post by: zieg85 on February 20, 2015, 09:25:47 am
I likevthat A LOT. I think I will try one of those above. Will that fix the problem of the fuel guage going all the way past F to the 3 o clock position when it's full?

That 3:00 position is usually a lack of ground to the sending unit
Title: Re: changing guage cluster to one with a tach
Post by: Irish_Alley on February 20, 2015, 10:09:55 am
I likevthat A LOT. I think I will try one of those above. Will that fix the problem of the fuel guage going all the way past F to the 3 o clock position when it's full?
since it reads right when its at other levels I would think its a dead spot in the sending unit. No facts behind this ideal just what I'm thinking in my head

That 3:00 position is usually a lack of ground to the sending unit

Title: Re: changing guage cluster to one with a tach
Post by: var498 on February 20, 2015, 11:21:01 am
Who sells those tachs with the small fuel gauge? And how much I would like to buy one for my 79 and is it a direct fit?


Sent from my iPhone using Tapatalk
Title: Re: changing guage cluster to one with a tach
Post by: jim.clark.52687506 on February 20, 2015, 12:00:47 pm
http://www.gmsports.com/content/new-tachometer-1973-1986-chevy-and-gmc-trucks
Title: Re: changing guage cluster to one with a tach
Post by: zieg85 on February 20, 2015, 12:24:44 pm
You will loose 2 indicator lights where the gas gauge is located.
Title: Re: changing guage cluster to one with a tach
Post by: rich weyand on February 20, 2015, 12:47:50 pm
You should re-locate the brake warning light.  Here's how to do the install.

http://forum.73-87chevytrucks.com/smforum/index.php?topic=28547.0
Title: Re: changing guage cluster to one with a tach
Post by: jim.clark.52687506 on February 20, 2015, 01:25:10 pm
I think I'm going to like this forum I just joined about three days ago but it appears that there is a wealth of knowledge on here
Title: Re: changing guage cluster to one with a tach
Post by: Irish_Alley on February 20, 2015, 02:59:15 pm
Jim posted the webpage but if you click on the gauge I posted it will take you there also