Axle ratio

Ok I installed the 32 tooth pinion. The speedometer is reading 2-3 mph higher than my GPS said I am going.
If the speedo reads 65 mph, the GPS says 62 mph.
I imagine that a 33 tooth would have been perfect, but there would have been something else to throw it off.
So I am more than satisfied with the results I got.
I guess this thread can be considered solved, or not