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-   Modified JK Tech (https://www.jk-forum.com/forums/modified-jk-tech-2/)
-   -   Anyone wish they did NOT go 5.13? (https://www.jk-forum.com/forums/modified-jk-tech-2/anyone-wish-they-did-not-go-5-13-a-26537/)

AZ Bulldog Jan 25, 2008 07:49 PM


Originally Posted by boots (Post 310719)
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. :D Oh, did I mention I had a couple switches put in also?... :D

http://i139.photobucket.com/albums/q...1/101_0675.jpg

adaycj Jan 26, 2008 05:26 AM

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.

HULKGREEN Jan 26, 2008 06:57 AM


Originally Posted by adaycj (Post 311424)
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 :crazyeyes:

HULKGREEN Jan 26, 2008 06:58 AM


Originally Posted by AZ Bulldog (Post 311109)
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. :D Oh, did I mention I had a couple switches put in also?... :D

http://i139.photobucket.com/albums/q...1/101_0675.jpg


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

please explain which one controls what ??????

Eracer76 Jan 26, 2008 07:30 AM


Originally Posted by HULKGREEN (Post 311514)
The switches look awesome there and still high enough to reach .....:yup: :yup:

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 :thinking:


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

Zonk 1/75 Jan 26, 2008 10:26 AM


Originally Posted by Eracer76 (Post 311541)
Im just wondering what is stuck on the face of his radio, it looks like the protective film from the factory :thinking:

I knew somebody would have to point that out............

Maybe his player is a touch screen? :D

Once again, Back on topic...........

ChunksInMud Jan 26, 2008 10:27 AM


Originally Posted by RubiconOrdie (Post 309251)
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?

4x4LOYR Jan 26, 2008 10:44 AM

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?

greggradwohl Jan 26, 2008 11:37 AM


Originally Posted by SoCal_JK_2dr (Post 311748)
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.

150 Jan 26, 2008 11:57 AM

subscribing :)


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