Topic: Abusing Squirrels

[neale_rs]

I love the Atlas 2 speed, I can tach it out in low range in any gear, 5th in low range gives it a bit more oomp than 1st in high range so in essence I have a 10 speed tranny, The big beast definitely climbs long sand hills better than my little Jeep.
Where the little one chokes and digs in on ling hill climbs in 3th low the big one just keeps screaming and climbing in 4th low and has enough momentum left at the top of the hill to make a turn and climb another one

Doing the math (have a spreadsheet already set up), 4th in your big Jeep is 33.6:1.  Adjusted from 39.5s to 33s this would be 28:1.  3rd in your small Jeep is 33.6:1. Adjusted from 35s to 33s this is 31.7:1, about 13% lower.  I´ve also found a gear around 28 or 29:1 with my 33s to be ideal for hills and wet ledges, almost like magic.  It's amazing how seemingly small differences in gearing can make such a difference. 

[sharpxmen]

Doing the math (have a spreadsheet already set up), 4th in your big Jeep is 33.6:1.  Adjusted from 39.5s to 33s this would be 28:1.  3rd in your small Jeep is 33.6:1. Adjusted from 35s to 33s this is 31.7:1, about 13% lower.  I´ve also found a gear around 28 or 29:1 with my 33s to be ideal for hills and wet ledges, almost like magic.  It's amazing how seemingly small differences in gearing can make such a difference. 

it's the other way around, the smaller the tire the lower the ratio (if i understand correctly what you meant by "adjusted from 39.5 to 33")

[neale_rs]

It's ok, the smaller tire would need the numerically lower gear ratio to move the vehicle at the same speed.

[sharpxmen]

It's ok, the smaller tire would need the numerically lower gear ratio to move the vehicle at the same speed.

i see what you mean now.

[aw12345]

Looking at the calculator again something does not jive, my speed and rpm at 65 is way off. in 6th at 65 the Jeep turns about 26-2700 rpm and not 2172 as the calculator shows. As far as rubicons go they could simply shift to high range or rev them up some more. The terra lo has the rpm restriction on it never hears of that on a 231 transfer case it has a different planetary setup than the stepped gears in a terra lo. Seems to me it's more a problem of in experienced drivers to lazy or afraid to shift to high range. Also truth be told for mud wheelin a 4 to 1 transfercase is not the way to go

[sharpxmen]

Looking at the calculator again something does not jive, my speed and rpm at 65 is way off. in 6th at 65 the Jeep turns about 26-2700 rpm and not 2172 as the calculator shows. As far as rubicons go they could simply shift to high range or rev them up some more. The terra lo has the rpm restriction on it never hears of that on a 231 transfer case it has a different planetary setup than the stepped gears in a terra lo. Seems to me it's more a problem of in experienced drivers to lazy or afraid to shift to high range. Also truth be told for mud wheelin a 4 to 1 transfercase is not the way to go

what gear and ratio (for transmission) and what ratio do you have in your axle?

[neale_rs]

Also truth be told for mud wheelin a 4 to 1 transfercase is not the way to go

Especially if you need to use reverse in the mud!

[Bounty Hunter]

As far as rubicons go they could simply shift to high range or rev them up some more.

And lose the use of the lockers, unless they're one of the rare few to mod the switches to work in 4hi.

[aw12345]

One of the best mods for a Rubicon is to ditch the stock locker switch and install 2 switches for the lockers Either the style arb uses or whatever tickles one fancy. The wiring is fairly simple and easy to do that way you can use either locker when ever you want too