This is a nice gear calculator which allows you to input the tire size and
each gear/diff ratio

http://www.teammfactory.com/gear-calculator

On Mon, Feb 10, 2014 at 12:13 PM, mark drillock <mdrillock@cox.net> wrote:

> And if you look at what it gives as the re/mile for those 2 tires is it
> exactly what BFG says?
>
> Some lame programs pretend to calculate rev/mile from raw tire size. If
> the program will instead let you input the rev/mile values from the tire
> company then you can get better accuracy.
>
> Mark
>
> Ralph Meyermann wrote:
>
>> It has tire rev per mile part of calculation
>>
>> Velma 82 1.9L AAZ td westy
>> On Feb 10, 2014 2:02 PM, "mark drillock" <mdrillock@cox.net> wrote:
>>
>>  There are a lot of garbage calculators on the web.
>>>
>>> Tire companies tell you how many rev/mile their tires turn. That is the
>>> spec to use for calculating gearing. If your calculator used a raw tire
>>> size instead then it is probably garbage.
>>>
>>>
>>> BFG says their 195/75/14 tire is 815 rev/mile
>>> BFG says their 215/75/15 tire is 748 rev/mile
>>>
>>>
>>> Mark
>>>
>>>
>>>
>>>
>>> Ralph Meyermann wrote:
>>>
>>>  It was showing me that the only ratio difference of the two was the ring
>>>> and pinion. The tire size is 27.8 on the bfg and 25-26 on my 195/75/14?
>>>>
>>>> Velma 82 1.9L AAZ td westy
>>>> On Feb 10, 2014 1:17 PM, "Ralph Meyermann" <ralphmeyermann@gmail.com>
>>>> wrote:
>>>>
>>>>   I was using the transaxle ratio/tire size calculator thing to make my
>>>>
>>>>> reference from. Is it not that accurate?
>>>>>
>>>>> Velma 82 1.9L AAZ td westy
>>>>> On Feb 10, 2014 1:14 PM, "mark drillock" <mdrillock@cox.net> wrote:
>>>>>
>>>>>   Stock DK tranny and 195/75/14 tires in 4th at 3500 is 65.6 mph
>>>>>
>>>>>>
>>>>>> Stock DZ tranny and 195/75/14 tires in 4th at 3500 is 51.4 mph
>>>>>>
>>>>>> Stock DZ tranny and 215/75/15 tires in 4th at 3500 is 56.1 mph
>>>>>>
>>>>>> Mark
>>>>>>
>>>>>>
>>>>>>
>>>>>> Ralph Meyermann wrote:
>>>>>>
>>>>>>   Hi Volks, I may have another silly idea. I am planning on having my
>>>>>>
>>>>>>> diesel
>>>>>>> ratio transaxle rebuilt with a 1st and second ratio change to a 4.13
>>>>>>> and
>>>>>>> 2.25 if my memory is correct to aide pulling my small fishing boat
>>>>>>> out
>>>>>>> of
>>>>>>> the water. My silly idea is that with 215/75/15 bfg all terrains
>>>>>>> matched
>>>>>>> to
>>>>>>> my diesel ratio transaxle is about the same as my dk transaxle with
>>>>>>> my
>>>>>>> 195/75/14. I was thinking that when I'm bringing the boat camping I
>>>>>>> will
>>>>>>> run the 14" wheel package to take some load off the engine/transaxle
>>>>>>>   and
>>>>>>> when I am not bringing the boat Ill use the big wheel package to gain
>>>>>>> some
>>>>>>> hwy speed? It's so crazy, it just might work??
>>>>>>> Velma 82 1.9L AAZ td westy
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>
>>

--
Casey