speedo. gears witch to use

[DVolk]

On my Suburban 1 ton 4x4 conversion which spedo gears should i run



the dodge 205 gears or a set of gm 205 gears i got any ideas ????



thanks

 

[PKirby]

I used GM gears but my transfer case is a GM NP208. I borrowed a GPS and changed driven gears a couple of times until the speedo was correct.



Here is a helpful link:



http://www.transmissioncenter.net/speedometer_calibration_______va.htm