Sorry as it was many years ago I cannot remember the cog ratio but I am sure there were at least 3 versions. My car is automatic and I think the m41 overdrive gearbox has a different cog ratio. You must be able to find this out because thats what I did when I had the problem unfortunately I cannot remember where I got the information it might have been on this forum?
The difference is only small I think the inaccuracy of the speedo is less than 5%
Just looked it up reading 30 mph (48.28 km/h) is actually 29.74 mph (47.87 km/h)
https://www.tacomaworld.com/tirecalc...0r15-195-65r15
Hope this helps you.
Gavin