DISCLAMER: I'm good but not perfect, on mph conversions I've rounded up to the tenth of an mph. If there's an error its to the right of the decimal point.
An insert of my previous musings on gears...
(Crawl ratio = Motor Rotations : One Tire Rotation)
Single Case
1{eng}*3.767{man. 1st}*1{man. t-case high}*4.56{diffs}=17.177:1
1{eng}*3.767{man. 1st}*2.28{man. t-case low}*4.56{diffs}=39.164:1
1{eng}*3.767{man. 1st}*2.66{auto t-case low}*4.56{diffs}=45.692:1
Single Case W/Revo Gears
1{eng}*3.767{man. 1st}*3.07{man. t-case Revo}*4.56{diffs}=52.734:1
Dual Cases
1{eng}*3.767{man. 1st}*1{man. t-case high}*1{auto t-case high}*4.56{diffs}=17.177:1
1{eng}*3.767{man. 1st}*2.28{man. t-case low}*1{auto t-case high}*4.56{diffs}=39.164:1
1{eng}*3.767{man. 1st}*1{man. t-case high}*2.66{auto t-case low}*4.56{diffs}=45.692:1
1{eng}*3.767{man. 1st}*2.28{man. t-case low}*2.66{auto t-case low}*4.56{diffs}=104.178
Dual Cases W/Revo Gears
1{eng}*3.767{man. 1st}*3.07{man. t-case Revo}*1{auto t-case high}*4.56{diffs}=52.734:1
1{eng}*3.767{man. 1st}*2.28{man. t-case low}*3.07{auto t-case Revo}*4.56{diffs}=120.235:1
1{eng}*3.767{man. 1st}*3.07{man. t-case Revo}*2.66{auto t-case low}*4.56{diffs}=140.275:1
1{eng}*3.767{man. 1st}*3.07{man. t-case Revo}*3.07{auto t-case Revo}*4.56{diffs}=161.896:1
Now I know all those numbers look cool, or have glazed your eyes over like a doughnut depending on how your clock ticks, but lets put it into a different perspective. MPH!
Here are a list of speeds based on the following facts: 1. tire size=235/75/15 (28.80" diameter 29s) & 2. idle=650rpms.
17.177:1 = 3.3mph (1st gear + t-case high)
52.734:1 = 1.1mph (1st gear + t-case Revo)
104.178 = 0.5mph (1st gear + dual t-cases low)
161.896:1 = 0.3mph (1st gear + dual t-cases Revo)
Here are a list of speeds based on the following facts: 1. tire size=235/85/16 (31.73" diameter 32s) & 2. idle=650rpms.
17.177:1 = 3.5mph (1st gear + t-case high)
52.734:1 = 1.6mph (1st gear + t-case Revo)
104.178 = 0.6mph (1st gear + dual stock t-cases low)
161.896:1 = 0.4mph (1st gear + dual t-cases Revo)
My musings on momentum
While being in a lower range does make 1st gear much slower, the other four forward gears are still available to you for those...shall we say... less then technical sections of trail. Here are the ratios of those other four forward gears: 2nd 2.248, 3rd 1.404, 4th 1.000, 5th 0.809. Plug any one you like into the above equations in place of 1st 3.767 & go. For example, if you get the Revo gears for your stock t-case & you want to get a real momentum burst, 3rd gear + t-case Revo = damn near the same ratio as 1st gear + t-case high... problem solved without ever coming out of low & no extra wear on the clutch vs trying it in high range.
~psguardian
P.S. If you wanna get
REALLY Froggy, swap out the diff 4.56:1 gears with 4.77s(rare) or 5.13s(unicorn)