Speedo setting [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Speedo setting


05'Max
08-28-2006, 11:34 PM
I remember seeing some postings about numbers needed to set the speedometer with the Diablo Predator 2.02. My speedo is off by about three or four miles now. I have 285/75/16's on now but very soon to install 275/70/18's. I could use some help here please.:confused:

kylant
08-29-2006, 10:27 AM
i have 285/70-17's and that is what i put into the predator and it is dead on. checked it with gps on more than one occasion.

others have had to experiment to get it accurate, often times the speedo is not correct from the factory.

good luck

The Neens
08-29-2006, 11:31 AM
Tire Diameters

285/75/16...32.83 in

275/70/18...33.16 in

285/70/17...32.71 in

This may help