stupidfast
NAXJA Forum User
- Location
- CT
i read a thread once where highway speeds were brought up with 4.10s, 4.56 and 4.88s, but it was only breifly. so post what gears you run and what your tach reads at 75-80mph
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lower gears at highway speeds
- Thread starter stupidfast
- Start date
old_man
NAXJA Forum User
- Location
- Loveland, Colorado
sidriptide
nobody of any consequence
- Location
- western massachusetts
i can only find a crawl-ratio on that calculator. the t/case ratio has nothing to do with highway driving so it screws up the rest of the equation.. i know theres a better calculator somewhere but i cant find it.
(never mind, i found it on the same site)
http://www.4lo.com/calc/geartable.htm
(never mind, i found it on the same site)
http://www.4lo.com/calc/geartable.htm
tealcherokee
NAXJA Forum User
- Location
- CT
http://www.4lo.com/calc/gearspeedo.htm theres the calc
http://www.4lo.com/calc/geartable.htm theres the chart
oh, you found it, i guess ill have to retract my smart ass comment
http://www.4lo.com/calc/geartable.htm theres the chart
oh, you found it, i guess ill have to retract my smart ass comment
- Location
- Westminster, SoCal
yeah, do the calc thing and keep in mind that 3K for RPM"s feels pretty good on th 4.0. For a while I had 4.88's and 31's: it felt as though I could climb anything (provided I didn't get stuck due to lack of clearance that is). On the freeway it kept me at legal speeds (70mph and lower)stupidfast said:
Ipkyss327
NAXJA Forum User
- Location
- hampden, MA
first link works fine. just put in 1 to 1 for transfer case... Whats first gear on a ax-15 anyways?
- Location
- San Bruno, CA.
Ipkyss327 said:
3.83
Yucca-Man
NAXJA Member # 683
- Location
- Castle Rock, CO
2750rpm @ 75mph with 32x11.50s and 4.56 gearing. AW-4 torque converter is locked, with 0.75 OD.
Yucca-Man said:
How do you find that combo as I am thinking of upgrading to 4.56's after going to 265/75/16 ( 31.9" true height" ) MTR's as have lost the pull I had on hills while towing and 4.11's and 31.2"'s? We cant drive here any faster than 62 mph most places and 68 mph on some freeways and highways. That is unless I am touring in the Northern Territory with no highway limits! Did your highway fuel consumption get much worse?
Last edited:
stupidfast
NAXJA Forum User
- Location
- CT
thoes calculators are crap. i dont know the ratio of 5th gear. just post your gearing and what your tach says at 75-80mph with the 4.0
- Location
- San Bruno, CA.
stupidfast said:
Do you not know simple math?
5th gear is .75 BTW.
vegas_baja
NAXJA Forum User
- Location
- las vegas
this is the same formula 4lo uses without using the transfercase crawl ratio.
(rear end gear ratio) X (trany gear ratio) X (mph) X (336)
____________________________________________________ = rpm
actual tire size
example:
4.56(rear end) X .75(5th gear) X 75(mph) X 336(variable)
____________________________________________________= 2652(rpm)
32.5(actual tire size for most 33's)
(rear end gear ratio) X (trany gear ratio) X (mph) X (336)
____________________________________________________ = rpm
actual tire size
example:
4.56(rear end) X .75(5th gear) X 75(mph) X 336(variable)
____________________________________________________= 2652(rpm)
32.5(actual tire size for most 33's)
Last edited:
Rev Den
NAXJA Forum User
- Location
- Plainfield, IL
stupidfast said:
Do you want it for each mile an hour from 75 - 80? Every half mile an hour? Seems to me that you were giving the information you seek, and more. BUT NOOOOOOO....you want everything handed to you on a silver platter. Fine I have printed the information out for you....I will leave it inside my fenced back yard, next to my axles, that way I know you will see it.
Rev
vegas_baja
NAXJA Forum User
- Location
- las vegas
Rev Den said:
Most important, are your dogs inside or outside?
Rev Den
NAXJA Forum User
- Location
- Plainfield, IL
Never mind the dog....beware of owner.
Rev
Rev
- Location
- Foresthill, CA
Jes said:
Do you not know simple math?
5th gear is .75 BTW.
Hello, his name is Stupidfast! I think we should congratulate him on admitting to limited mental capacity.
vegas_baja
NAXJA Forum User
- Location
- las vegas
Does 4lo have the formula for figuring out mental capacity?
I can't seem to find it on their website.
I can't seem to find it on their website.
