Author Topic: FYI on 35" tires/speedo gear size  (Read 2522 times)

Offline JCKustoms

  • Newbie
  • Posts: 12
  • '82 K10 w/TPI
FYI on 35" tires/speedo gear size
« on: December 16, 2009, 05:32:25 pm »
If anyone is curious. Here is a little info on speedo gears for an NP208.

I have 35's (actually 33.4 when measured with a tape) and 4.56 gears and I am using a
15 tooth drive gear and a 45 tooth driven gear and my speedo is only off .3 mph at 55! I know there are speedo
calculators out there, but they didn't compute correct for me. So I did the trial and error method til I found
the right gears ratio! Hope this helps someone! :)