Mechanical Spedo Calibration

[Luehrs1]

I have an '89 Blazer with 33" tires and a transfer case out of a '88 Suburban. The spedo reading is off. When it says 55 mph the person that helped me test it was going 70 mph. Is there anyway to get that fixed?

Patrick

 

[pauly383]

You replace the gear the cable connects to on the tailhousing . Its too funny .... I figured it out on mine , and have yet to buy it

Look in here Thread

There are some links in the post I made that help you oick the right gear
http://coloradok5.com/forums/showthread.php?t=121705

 

[bigred81]

If you can get me the size of the tires, current axle ratio, the year model, transmission, and t-case I can call the dealer ship in Victoria to get a gear recommendation for the t-case. I need to know the color of the main gear inside the t-case if it is the one you got from it was a gray gear. Give me call if you need help (830) 583-5437. I have test this week so it might be hard to get a hold of me.

Bigred81