Notices
Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM

Anyone wish they did NOT go 5.13?

Thread Tools
 
Old Jan 25, 2008 | 07:49 PM
  #21  
AZ Bulldog's Avatar
JK Super Freak
 
Joined: Nov 2007
Posts: 1,548
Likes: 0
From: Tucson, Arizona
Default

Originally Posted by boots
AZBulldog,

What's the story with your JK, did you get your 5:13 gears installed ?


Yep, I just got her home (930pm). I only drove it about 3 miles so I don't have a report for you tonight but I will tomorrow. Oh, did I mention I had a couple switches put in also?...

Reply
Old Jan 26, 2008 | 05:26 AM
  #22  
adaycj's Avatar
JK Enthusiast
 
Joined: Feb 2007
Posts: 348
Likes: 0
From: Michigan
Default

As a quick example at 62.5 mph there is only about 130 RPM difference between the two.

A 143 RPM difference at about 70.3 mph. The difference here is pretty small.
Reply
Old Jan 26, 2008 | 06:57 AM
  #23  
HULKGREEN's Avatar
JK Freak
 
Joined: Sep 2007
Posts: 654
Likes: 0
From: Louisiana
Default

Originally Posted by adaycj
As a quick example at 62.5 mph there is only about 130 RPM difference between the two.

A 143 RPM difference at about 70.3 mph. The difference here is pretty small.

This is roughly the same RPM difference I see when changing from 32.3 tire ( stock ) and 32.8 tire ( M//T MTZ's ) but on a side note .....

I see approx 1.5 to 2 mpg diffrence between the two also with a 6-speed
Reply
Old Jan 26, 2008 | 06:58 AM
  #24  
HULKGREEN's Avatar
JK Freak
 
Joined: Sep 2007
Posts: 654
Likes: 0
From: Louisiana
Default

Originally Posted by AZ Bulldog
Yep, I just got her home (930pm). I only drove it about 3 miles so I don't have a report for you tonight but I will tomorrow. Oh, did I mention I had a couple switches put in also?...


The switches look awesome there and still high enough to reach .....

please explain which one controls what ??????
Reply
Old Jan 26, 2008 | 07:30 AM
  #25  
Eracer76's Avatar
JK Enthusiast
 
Joined: Feb 2007
Posts: 234
Likes: 0
From: Yorkville, IL
Default

Originally Posted by HULKGREEN
The switches look awesome there and still high enough to reach .....

please explain which one controls what ??????
It looks like the top one is the compressor and the bottom two are the front and rear lockers......they look nice
Im just wondering what is stuck on the face of his radio, it looks like the protective film from the factory


Back on topic...........the 5.13's with an auto and 35's are the only way to go IMO

Last edited by Eracer76; Jan 26, 2008 at 07:34 AM.
Reply
Old Jan 26, 2008 | 10:26 AM
  #26  
Zonk 1/75's Avatar
JK Enthusiast
 
Joined: Dec 2007
Posts: 159
Likes: 0
From: NorCal
Default

Originally Posted by Eracer76
Im just wondering what is stuck on the face of his radio, it looks like the protective film from the factory
I knew somebody would have to point that out............

Maybe his player is a touch screen?

Once again, Back on topic...........
Reply
Old Jan 26, 2008 | 10:27 AM
  #27  
ChunksInMud's Avatar
JK Newbie
 
Joined: Jan 2008
Posts: 32
Likes: 0
From: Ventura, CA
Default

Originally Posted by RubiconOrdie
Ooo, a VA Beach JK. I think I might of seen you cruising around a bit, not sure. I'm at my final decision on gearing too. I'm a manual and my math tells me 4.88. 4.56 would actually put me a stock like performance but with the extra weight of my bumpers and winch I was thinking 4.88. If I had an Unlimited Auto I would certainly go 5.13. It's a big decision. You thinking about using ETA to install?
Hey Ordie, you might have seen me @ Oceana, I have done all my work at the Hobby Shop there.

I think I'll be doing 4.88s also. I'm not sure where I'm going to go for the gearing, but I can tell you it won't be ETA. When I was putting on my TF 3" lift, I had to get an adjustable front trackbar quick, and they quoted me one price over the phone and then wanted to charge me another when I was there. Bad experience.

Any recommendations for where to get gearing done?
Reply
Old Jan 26, 2008 | 10:44 AM
  #28  
4x4LOYR's Avatar
JK Freak
 
Joined: Dec 2007
Posts: 958
Likes: 1
From: San Marcos, CA
Default 4.88's or 5.13's

I'm glad to see others are struggling with this decision as well. I currently have 35's, and a manual with 4.10's; and, I think it drives fairly well. Seems to me that if I had an auto, the decision would be a no-brainer. I guess the deciding point would be if I were to consider getting 37's later on (thing is, with the 4" lift and 35's, the Jeep sits pretty high, and we're all kind of short in my family -- 37's would just add that much more height.) Although, with what everyone is saying, that there is not much of an rpm difference, it would be better to, at least, have the option of going to 37's.

What about the argument that the 5.13's are possibly weaker than the 4.88's?
Reply
Old Jan 26, 2008 | 11:37 AM
  #29  
greggradwohl's Avatar
Thread Starter
JK Enthusiast
 
Joined: Mar 2007
Posts: 427
Likes: 0
Default

Originally Posted by SoCal_JK_2dr
What about the argument that the 5.13's are possibly weaker than the 4.88's?
I know , in theory, this is true. I have not heard of anyone ever breaking their gears, however - think there are several other weaker links in this chain.
Reply
Old Jan 26, 2008 | 11:57 AM
  #30  
150's Avatar
150
Fallen Hero
 
Joined: Jun 2007
Posts: 668
Likes: 0
From: I get around
Default

subscribing
Reply



All times are GMT -8. The time now is 07:58 PM.