I recently became the owner of a 1990 Chevy Suburban 4x4 with a 18" lift and 40" super swampers, the only trick was the speedo doesnt work, and I had to drive it 250 miles back to my house. THIS APP, worked 98% of that trip! And going across back Texas hill country roads, thats pretty impressive, I dont even get phone signal for half that trip.
Big props to the developer! You guys saved me more than one speeding ticket that day!
texasean about Speedometer 55 Start. GPS Box.