Okay I want to add a tach. I want to spend the least amount of dollars. What do I need to get. Do I need the one with the alternator pickup or not. My truck is a 1991.5

 

yes get the autometer 2888? do a search, wannadiesel has one its supposed to be the easiest and cheapest.

 

Wait a second... I thought that the 1991's had hook-ups underneath the dash for a tachometer?

What year did those start?

 

'92 was the first year with a crank sensor.

 

So with a 92 you can hookup a standard tachometer?

I've been looking into an el cheapo junkyard tach setup. Homemade crank trigger etc. I don't know iff it will work yet.

At this point I'm not spending $100 for a tach

 

I bought my tach from : www.surpluscenter.com. It is similar to this only 4000RPM model:
http://www.surpluscenter.com/item.as...atname=engines They also have a 5000 RPM model available. I had a local alternator shop add an output wire when I had my alternator rebuilt, but the wiring is pretty simple and can be done easily at home.

 

I did a quick search and came up with the following:
http://www.turbodieselregister.com/f...lternator+tach

Hope this helps!!!

 

HA ha, I'm so cheap!


Those are some truly wonderful links. It looks like I can have a tach for less than 25 bucks. I could do it for less if I found a VW diesel tach in the pick and pull.

 

Just my luck, im not a member yet. So what is the just of it. can you use a reg old tachometer through your Alternator?

 

You have to have a tach designed to run off the alternator output. It only requires the removal of the rear cover of the alt. and adding 1 wire.