Dolphin Gauges | Adjusting the Speedometer

May 9th, 2003 : Dolphin Gauges & Custom Dash Inserts

I ordered Dolphin Gauges for my truck for a number of reasons ... first, the fuel and temperature gauges in my truck either didn't work or they weren't hooked up, and the previous owner had after-market gauges mounted under the dash - which I didn't like ... second, I needed an adjustable speedometer to compensate for the 15-inch rear wheels on my truck ... third, I liked the looks of them ... and fourth, they offered custom dash inserts with left and right turn signal indicator lights!

NOTE: They don't seem to be offering the dash inserts anymore! If you need them, you can call and find out what's up: 386.437.1077

Dolphin Dash Inserts

The three holes you see on the left ring above, accommodate the indicator lights for turn signals and high beams -- what a relief it is to have indicators! There were none on the stock setup!
Removing Old Gauges

The only complaints I have about the Dolphins is that the mounting clips were not shaped right, nor were they the right length, and they were also very, very poor quality! Also, the dash inserts were not exactly the right size ... they kept resting on the bottom of the dash opening, leaving about a sixteenth of an inch space at the top of the insert. This is totally unforgivable! I decided I could live with the space at the bottom of the insert, but not at the top -- it would forever haunt and irritate me -- so I decided to leave it be and reapproach the situation the next day ... to start over with a fresh approach.

The following day, after carefully fashioning the mounting clips to my satisfaction, I reapproached the installation of the "custom" dash inserts and had much greater success. The mounting clips held nicely, but the inserts kept resting at the bottom of the dash opening, so I applied some ProBond polyurethane glue to the bottom half of the inserts, clamped them in place, tightened the mounting clips and let them cure overnight.

On the third day, I installed the gauges with no difficulties at all. Wired them up and presto!
New Gauges / Finishing Up

UPDATE: May 5th, 2007: I've covered the trim rings with elk leather -- Click Here to See

Adjusting the Dolphin Electronic Speedometer
If you have a set of Dolphin Gauges and you have the electronic speedo, here's how:

You are going to pace or follow another car with an accurate speedometer. First, go to the backside of your speedometer and remove the rectangular rubber cap. Put switches 3, 5 and 6 in the up position ... all other switches go in the down position for your road/pace test. You and the pace car will drive at 55 mph ... note what speed your gauge is reading.

Pacing at 55 mph, if your speed is ...

1 - 34 mph: Click Here

35 - 68 mph: Click Here

69 - 102 mph: Click Here

103 - 136 mph: Click Here

If you have any problems, Call Dolphin at 386.437.1077 or Contact Dolphin | Click Here.

Has Alan's Site Been Helpful to You? Put Some Cash In Alan's Tip Jar!
Enter the Amount You Want to Donate & Click the Button Below:

Or, If You Prefer, You Can Donate Using PayPal:

[Next Project • Click Here]