- Joined
- Aug 10, 2014
- Messages
- 503
- Reaction score
- 22
- Points
- 18
- Age
- 31
- Location
- Madison, IN
- Vehicle Year
- 1995
- Make / Model
- Ford Ranger
- Engine Type
- 4.0 V6
- Engine Size
- 4.0L
- Transmission
- Automatic
- 2WD / 4WD
- 2WD
- Tire Size
- 215/70R15
I changed tires this weekend, and as a result of them being a tad small (215/65R15 vs the old 215/70R15), my speedo/odo is also off.
Despite being a 1995, I found that my VSS has a cable-style gear on it:
(that's ATF, not blood).
Despite being green, it's actually 16 teeth.
However, when I run the numbers, I need a 16.48 tooth gear. That rounds back to 16... but it's right on the line. According to tire size ratios and some empiriacal data, I'm reading 3.3% too fast.
I'm not in the budget for a speedo healer ($220, no thanks). Is 3.3% close enough to be OK? Or do I need different tires. The latter isn't so good, as I bought nice tires; they're Continental Control Contact Tour AS's (I know, car tire, but I don't offroad and they ride really well).
What to do?
Despite being a 1995, I found that my VSS has a cable-style gear on it:
(that's ATF, not blood).
Despite being green, it's actually 16 teeth.
However, when I run the numbers, I need a 16.48 tooth gear. That rounds back to 16... but it's right on the line. According to tire size ratios and some empiriacal data, I'm reading 3.3% too fast.
I'm not in the budget for a speedo healer ($220, no thanks). Is 3.3% close enough to be OK? Or do I need different tires. The latter isn't so good, as I bought nice tires; they're Continental Control Contact Tour AS's (I know, car tire, but I don't offroad and they ride really well).
What to do?