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Gear ratio conflict
#1
Gear ratio conflict
I've been thinking of regearing my 29 spline 8.25 and my HP D30 down to 4.10s, but for some reason all the 8.25 gears that I find are 4.11s, but the D30s are 4.10. Even within the same brand of gears. With the .01 difference cause any issues or should I gear it to a different ratio?
I have however, found that both axles have aftermarket support for 4.56 gears. Should I just go to 4.56? what have you guys ran, or suggest? I plan to swap my gearing when I go up to 33in tires. I have a 5 speed, and don't want to high of freeway RPMs if that helps.
let me know if I need to supply any more info
I have however, found that both axles have aftermarket support for 4.56 gears. Should I just go to 4.56? what have you guys ran, or suggest? I plan to swap my gearing when I go up to 33in tires. I have a 5 speed, and don't want to high of freeway RPMs if that helps.
let me know if I need to supply any more info
#3
Seasoned Member
Joined: Sep 2010
Posts: 440
Likes: 0
From: Akron, OH
Year: 1993
Model: Cherokee
Engine: 4.0 HO
#4
CF Veteran
Joined: Sep 2010
Posts: 4,968
Likes: 0
From: Salt Lake City, UT
Year: 2000
Model: Cherokee
Engine: 4.0L
Its not worth re-gearing twice, either go 4.56 now. or wait for the bigger tires to re-gear. stock gearing is good enough for 32's, going to 4.10's isn't worth the money IMO. just my .02
4.10-4.11 is the same.
4.10-4.11 is the same.
#7
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 30
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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#8
I have 3.07 now, but I see what your saying as far as the difference goes.
Like mentioned, I don't want to go to 4.10s and find out I had plenty of room to go higher.
Is there anyone here who has 33s and 4.10s or 4.46s (or even 4.88s)in a 5 speed that can share their thoughts? I'm specifically curious about fuel economy and highway rpms at 65-70mph. I want to go as high as I can with ought hurting my gas consumption too much. I will only see dirt a few times a year, but I want it to be capable.
Thanks for the links an everything. They were very informative. I really appreciate it.
Like mentioned, I don't want to go to 4.10s and find out I had plenty of room to go higher.
Is there anyone here who has 33s and 4.10s or 4.46s (or even 4.88s)in a 5 speed that can share their thoughts? I'm specifically curious about fuel economy and highway rpms at 65-70mph. I want to go as high as I can with ought hurting my gas consumption too much. I will only see dirt a few times a year, but I want it to be capable.
Thanks for the links an everything. They were very informative. I really appreciate it.
#10
CF Veteran
Joined: Feb 2010
Posts: 5,420
Likes: 0
From: Soddy Daisy TN
Year: 97
Model: Cherokee
Engine: 4.0L
I think most have missed that you have a 5 speed. I know several running 33s and 35s with 4.10s and a manual, don't know their mpg though but it should put you back close to stock.
#12
CF Veteran
Joined: Jun 2009
Posts: 2,294
Likes: 349
From: Michigan
Year: 1987 MJ, 1973 J2000, 1986 XJ, 08 JK
Model: Comanche (MJ)
Engine: 4.0L H.O
#13
@ 33" and 4.56 you are stock on an AW4, your AX15 will run a little over stock. But I agree that the jump from 3.07 to 4.10 or 4.11 is going to be pricey and might not be quite enough of a gain. Consider that your going to have to start sacrificing on road ability for off road ability sooner or later.. At least to some degree.. So my vote is 33's on 4.56's
#14
Member
Joined: Aug 2011
Posts: 139
Likes: 0
From: Atlanta, Georgia
Year: 1996
Model: Cherokee
Engine: 4.0 HO
Originally Posted by VTJeep
@ 33" and 4.56 you are stock on an AW4, your AX15 will run a little over stock. But I agree that the jump from 3.07 to 4.10 or 4.11 is going to be pricey and might not be quite enough of a gain. Consider that your going to have to start sacrificing on road ability for off road ability sooner or later.. At least to some degree.. So my vote is 33's on 4.56's
#15
Originally Posted by Fallen
Actually 33s with 4.10s would be as close as stock as you could with AW4, but I agree 33s and 4.56 would be best