crawl ratio

[Houndoc]

If I got it right, a "crawl ratio" is tranny gear x transfer case x axle gear. Correct?

Also, what is considered a 'good' ratio for most rigs (not talking buggy here)?

 

[RamToy]

That is it. I think it depends on what motor you are running. For me a 4-banger does good with a 220:1. If i wanted more all around use it would be good to have atleast 100:1. I think bigger HPs get away with a higher ratio ( lower number )

 

[Brett]

I'm just under 30:1 in my XJ (need to do the axle gears!) but with the auto, I basically double that. I've never had a problem with it. I think that it's mostly personal preference on how low you want to go. Even when I reagear, I'm only going to be arou 35:1. Works fine for me.

 

[SAMI]

i run 108:1 in my 4runner..

 

[78mitsu]

Tire size is pretty important too, if you have a huge tire and a smaller crawl ratio, it affects you more then a smaller tire and a smaller crawl ratio.

 

[SAMI]

right... gears should more or less be decided upon after your choice in tire size.. I have 37's so i run 5.29's in the axles.

 

[Spork]

My Stock Taco is about 35:1. :-\ Needs to be lower.
http://www.grimmjeeper.com/gears.html
Nice little calculator if you need it.

 

[Bone Down]

this is a calc that I have used in the past it affords you side by side comparisons for different drive combo's.

my ratio atm: 54.64 <-- 1st gear, low range, 5.13's, 35's.

 

[mbryson]

36.42:1 (that's with the auto) I'd like it a little deeper, but it does work fairly well on the trail.

 

[Cody]

Just buy an auto and be able to crawl when you want and be able to generate wheel spin when you want. Nothing is more painful than watching a toy guy with 2 cases go through 29 gears before they finally get up some little obstacle.

my buggy had 4.10's in the diffs and 3.8 in the t-case. Not sure on first gear. I liked how it worked. the new owner put 5.13's in the diffs and I didn't think it worked as well. It could have been that i just wasn't used to it though.

 

[Rot Box]

I'm @ 80:1 in my Toyota running 3.93 first/4.7 T-case/4.37 R&P gears, and it's really nice combo behind my gutless 20R. That being said I wish that I would have went with dual stock cases to get my stock low range back--that would be really nice for snow days

 

[Exalted 4x4]

I've heard ideal is 50 to 1 for autos, 100 to 1 for manuals. I'm 40ish and would like to be a lot lower in the boulder stuff.

 

[rondo]

Just buy an auto and be able to crawl when you want and be able to generate wheel spin when you want. Nothing is more painful than watching a toy guy with 2 cases go through 29 gears before they finally get up some little obstacle.

whatever...you sound like you're tooting your own horn or have a chip on your shoulder. My best pal has a yota with dual cases and he's never had to run thru 29 gears to get up some 'little obstacle'. A good driver who knows his equipment knows what gear to select up front. Only a newbie who's trying out his setup for the 1st time would do that...

 

[I Lean]

whatever...you sound like you're tooting your own horn or have a chip on your shoulder. My best pal has a yota with dual cases and he's never had to run thru 29 gears to get up some 'little obstacle'. A good driver who knows his equipment knows what gear to select up front. Only a newbie who's trying out his setup for the 1st time would do that...

Nah, he's just taking a shot at me.

 

[Cherokeester]

Just buy an auto and be able to crawl when you want and be able to generate wheel spin when you want. Nothing is more painful than watching a toy guy with 2 cases go through 29 gears before they finally get up some little obstacle.

my buggy had 4.10's in the diffs and 3.8 in the t-case. Not sure on first gear. I liked how it worked. the new owner put 5.13's in the diffs and I didn't think it worked as well. It could have been that i just wasn't used to it though.

Or just learn how to drive what you got. Probably would be easier and cheaper than a auto conversion.

 

[Cody]

whatever...you sound like you're tooting your own horn or have a chip on your shoulder. My best pal has a yota with dual cases and he's never had to run thru 29 gears to get up some 'little obstacle'. A good driver who knows his equipment knows what gear to select up front. Only a newbie who's trying out his setup for the 1st time would do that...

lol, nope just talking from experience. I don't understand how I was tooting my own horn when I made zero references to my own driving ability.

At any rate, I could give you a play by play of typical toy dual case guys on a wall that requires wheel speed to climb, but I've already done it a few times on this board and you might find someway to interpret it as my lifestory complete with tragic love lost and self promoting accounts of how amazing the bacon I cook tastes.


edit:
here, I even found it so I don't have to write it
http://www.rockymountainextreme.com/showpost.php?p=154330&postcount=22

for reference, there is nothing about my taste in hot air balloons, how much I bench press, or how extensive my knowledge of international politics is.

 

[Brett]

bacon

That's all I saw there

 

[SAMI]

That's all I saw there

 

[SAMI]

whatever...you sound like you're tooting your own horn or have a chip on your shoulder. My best pal has a yota with dual cases and he's never had to run thru 29 gears to get up some 'little obstacle'. A good driver who knows his equipment knows what gear to select up front. Only a newbie who's trying out his setup for the 1st time would do that...

rondo, rondo, rondo.... your buddy must not know what he's doing behind the wheel of his duals... i run duals, and theonly arguement i have for cody is this: 29 gears? sha... try 30.. i expected more from you Cody.

you know, i agree with Cody here actually.. i'd love to have an auto.. but we all know you'd have to be pretty much retarded to want to run an auto behind a 22re...

-Jason

 

[Herzog]

Calculators say I'm about: 61.77 (auto, atlas 4.3, 5.13 r&p)

Works for me... I love my ratios. I can haul ass when I need, crawl w/ out using brakes when I need.