Gears

[Wiser]

im eventually gonna run 33's and awanna regear my axles. I was thinking of usind either 4.56 or 4.10. which is better for a daily driver. i live in hesperia so i have to drive up Cajon summit(15fwy towards Vegas)elevation 4300 ft. what would be the rpm's at 65 mph on a straigh hwy with 4.10 gears and 4.56 gears? would the gas maileage suffer a lot? right now i have 3.55 gears and running 31's with a 3" lift and average about 2100 rpms around 70 in overdrive. most of my driving is freeway anyway.:wave:

[CanMan]

Wether you live on flat land or in the mountians, 4.56 would be the best with 33's. Leaves improvement toward 35" down the road.

[Wiser]

Wether you live on flat land or in the mountians, 4.56 would be the best with 33's. Leaves improvement toward 35" down the road.
thats wut i figured, thanx

[mojojojo]

i went 456 with 33"s. i am very pleased but almost wish i'd gone with 4.88's for crawling.

don't have a second thought about the 4.10's......go with the 4.56's !!!!!!!

[Wiser]

i went 456 with 33"s. i am very pleased but almost wish i'd gone with 4.88's for crawling.

don't have a second thought about the 4.10's......go with the 4.56's !!!!!!!
yeah 4.56 is the way im going. how's the acceleration with that low of a gear and large of a tire?

[Wiser]

Gear Ratio 2.352.732.943.073.213.313.423.553.733.914.114.274. 564.885.135.295.385.716.177.1722233327102919304831 78328633953524370338824080423945274845509352525341 56686125711823223125922792291530483143324833713542 37133903405543304634487150235109542258596808242139 24842675279429213012311232313394355837403886415044 41466848144896519656156525252053238525682682280428 92298831013259341635903730398442634482462147004988 53906264261974229324702579269627802873298231333284 34523587383040994309444445194796518360232719012208 23782483259726772766287230173163332534543689394741 50427943524619499158002818332129229323952504258226 68276929093050320633313557380640014126419644544813 55932917702056221423122417249325762674280929453095 32163434367538633984405243004647540030171119872140 22352337241024902584271528462992310933203553373538 51391741574492522031165619232071216322612332240925 01262827552896300832133438361437273790402343475051 32160418632007209521912259233424232546266928052914 31123331350136103672389742114894331555180719462032 21242191226323492469258827202826301832303395350135 61377940834745341510175418891972206221262197228023 96251226402743292931353295339834563668396346063514 66170418351916200320652134221523282440256526642845 30453201330133573563385044743614261656178418621947 20082075215422632372249325902766296131123209326434 64374343503713871611173518121895195420192095220223 08242625202692288130283123317633703642423238135115 69169017641845190219662040214422472362245426212805 29483040309232823546412139131615291646171917981854 19151988208921902302239125542733287329623013319834 55401540128314911605167617531807186719382037213522 44233124902664280128882937311833693915411252145415 66163517101763182218911987208321892275249225992733 28182866304232873819421222142015291596166917211778 18461940203321372220237125382668275127982969320837 28431194138714931559163016811737180318941986208721 69231624792606268727332900313436424411661355145915 24159316431698176218511941204021192263242225452626 2670283430633559is this chart a little off? running 33's with my 4.56's, rpms are gonna be that high?

[Wiser]

nvmd that, the chart didnt come out right :(

[SanDiegoXJ]

With 33's and 4.56 at freeway speed...and as I've clocked it from a friend in a honda following me, at 65 my speedo reads 72 and is running at just a hair over 2500 rpm.

[Wiser]

With 33's and 4.56 at freeway speed...and as I've clocked it from a friend in a honda following me, at 65 my speedo reads 72 and is running at just a hair over 2500 rpm. gas milage isnt to good is it? im not expecting to have stock mpg but somewhat reasonable, maybe 14-15 mpg hwy

[CanMan]

I saw in inprovement in gas mileage, not much, but it was better.

[Wiser]

I saw in inprovement in gas mileage, not much, but it was better. how much of a sacrifice in mpg?

[CanMan]

Gained 1-3 mpg highway, depending on how heavy my foot was. You should get around stock, and better than what you are getting now.

[Wiser]

Gained 1-3 mpg highway, depending on how heavy my foot was. You should get around stock, and better than what you are getting now. man that sounds good, i thought you would loose mpg's due to higher rpms.

[CanMan]

man that sounds good, i thought you would loose mpg's due to higher rpms.

Less stress on the engine trying to rotate tall tires with high(numericly lower) gears. This is with an AX15 btw.

[Wiser]

Less stress on the engine trying to rotate tall tires with high(numericly lower) gears. This is with an AX15 btw. oh true, i believe i have the aw4, i have the 98 sport 4L 6 With overdrive

[CanMan]

oh true, i believe i have the aw4, i have the 98 sport 4L 6 With overdrive

Yes.

[Wiser]

Yes. shouldnt be much of a difference, especially when i have the overdrive right?

[SanDiegoXJ]

Actually, I think I'm getting anywhere from 12-17 miles per gallon...hard to say since my speedo is still slightly off. but then again, I do mostly city driving. I will say, with the bigger tires, it becomes a lot more sensitive to your right foot. you drive like a granny and you'll do ok; you drive like you're in a sports car, expect single digits.

[Wiser]

Actually, I think I'm getting anywhere from 12-17 miles per gallon...hard to say since my speedo is still slightly off. but then again, I do mostly city driving. I will say, with the bigger tires, it becomes a lot more sensitive to your right foot. you drive like a granny and you'll do ok; you drive like you're in a sports car, expect single digits. yeah thats wut i figure, im real soft with the pedal cuz of gas prices, sad huh? when my mom drives, omg she has a heavy foot, i need an sye and you could feel the vibrations real bad, but ill have that sye taken care of very soon.

[JohnX]

Your milegae should be real close to stock. I got 17 average MPG for the whole trip to and from Moab last year....towing a 1500lb trailer. That included over a hundred miles in the dirt. I would say my normal is about 14 town/17 highway. If I drive slow (like when I have a trailer) and keep it on the highway, I can still crack the 20mpg mark. Yours should be no different, maybe even better with only 33's.

[Wiser]

Your milegae should be real close to stock. I got 17 average MPG for the whole trip to and from Moab last year....towing a 1500lb trailer. That included over a hundred miles in the dirt. I would say my normal is about 14 town/17 highway. If I drive slow (like when I have a trailer) and keep it on the highway, I can still crack the 20mpg mark. Yours should be no different, maybe even better with only 33's. damn thats really good for a jeep that high and 35's. yeah this actually sounds a lot better that i regear it and lift because it'll help out gas mileage. lol

[Wiser]

from a scale of 1-10 how hard are to put in gears in a 8.25 and a 30? wut is a reverse rotation mean? is that for the front axle or the rear?

[johnnyc]

It's real easy...if you pay someone else to do it for you.

On a scale of 1-10, it's definitely a 10. There are special tools that are needed. Not to mention special skills and experience.

[Wiser]

It's real easy...if you pay someone else to do it for you.

On a scale of 1-10, it's definitely a 10. There are special tools that are needed.
damn! :( that sux. extreme 4x4's Ian makes it look simple hahahahaha. yeah i guess i could do the lift myself and take it somewhere or have someone help me from here.

[CanMan]

damn! :( that sux. extreme 4x4's Ian makes it look simple hahahahaha. yeah i guess i could do the lift myself and take it somewhere or have someone help me from here.

If you are close enough, have Rawbrown do them for you.

[Wiser]

If you are close enough, have Rawbrown do them for you. hhmm possibly, i was reffered by russ pottenger to jeeperjohn also, so ill be PMing them when i get the parts and see if they help me out.

[Wiser]

good night everyone have a safe xmas!

[Kejtar]

4.56 or 4.88 if 33's is your plan. You do 4.10's you'll hate yourself later.

[SanDiegoXJ]

Yep, I'd second Rawbrown for you gears as well. He did mine and I haven't had a single issue.....and he brews his own beer you can drink if you assist! party1:

Unfortunately, I don't think hesperia is any too close to us...actually just did a yahoo! maps search....yer lookin' at about 150 miles....but if his work isn't worth it, his high octane blueberry mead IS! =)

[xjjeeper19]

JeeperJohn, me, or I know a few others, and we are all close to you.

Justin

[pnutishere]

I did my lift myself. Just by myself.. It took about 4-5 days working 2-3-4 hours after work each day. The 95 had alot of seized bolts. I used quite a bit of that PB rust Blaster stuff.. I can't remember what it's called but the last time i was on here I received quite a bit of help. But that's been about 5 years ago..

[silverslk]

Count down to when this gets moved????