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Topic Review (Newest First)
02-21-2012 11:23 PM
joe002
Quote:
Originally Posted by ShaunWV View Post
My fault. Feel free to smack me. 5.13's in my D30. It's late.
OK, I looked on the Yukon site and saw 5.38s for D30s, but not for JK D30s.
02-21-2012 11:20 PM
ShaunWV
Quote:
Originally Posted by joe002 View Post
OK, Yukon sells them now?
My fault. Feel free to smack me. 5.13's in my D30. It's late.
02-21-2012 11:12 PM
joe002
Quote:
Originally Posted by ShaunWV View Post
That's what run in my D30 (Yukons). No issues thus far.
OK, Yukon sells them now? Guess they're holding up for you.

I could only find an old link to Richmond gears, but the link is broken, so maybe they are having issues with their gears??? http://www.richmondgear.com/NEWDANA30JKfrt09.html

Here's a pics of them (5.38s on the left, 4.10s on the right):
02-21-2012 11:00 PM
ShaunWV
Quote:
Originally Posted by joe002 View Post
They actually sell 5.38s for the D30 now, but I haven't seen anyone install them yet, and I'm not sure how strong they would be...

That's what run in my D30 (Yukons). No issues thus far.
02-21-2012 10:58 PM
ShaunWV
Quote:
Originally Posted by johnsen View Post
Now we are getting somewhere.Thanks..had the sports cars..Porsches, etc..the Jeep is great for Surfing and Desert runs for some "range" time...I appreciate your help..think gearing is the answer..J

Bingo... My best purchase thus far.
02-21-2012 10:17 PM
joe002
Quote:
Originally Posted by jkjeeper06 View Post
I didn't know this? Is this Yukon or another company?
Yukon was not the first to come out with them (not sure if they have them now). I'll search back and find a link to the company, but like I said, I've never seen anyone who actually installed one, and not sure how strong they would be...
02-21-2012 09:58 PM
jkjeeper06
Quote:
Originally Posted by joe002
They actually sell 5.38s for the D30 now, but I haven't seen anyone install them yet, and I'm not sure how strong they would be...
I didn't know this? Is this Yukon or another company?
02-21-2012 08:43 PM
joe002
Quote:
Originally Posted by jkjeeper06 View Post
I'm not completely sure If you have a rubicon, Sahara, or sport, but unfortunately without a rubicon you are limited to 5.13 gears due to the Dana 30 axle in the front...
They actually sell 5.38s for the D30 now, but I haven't seen anyone install them yet, and I'm not sure how strong they would be...
02-21-2012 08:37 PM
jkjeeper06
Quote:
Originally Posted by johnsen
Gracias again Compadre..I'm thinking 5:13's or 5:38's..then re-install the 35's..looking for a smooth High way ride..off road "time" will be cruising through the desert, and beaches in SoCal...also trailer a couple of dirt bikes...thaks again..you Guys have been more than helpful..actually feel encouraged about the Jeep again .J
I'm not completely sure If you have a rubicon, Sahara, or sport, but unfortunately without a rubicon you are limited to 5.13 gears due to the Dana 30 axle in the front. 5.13s with 35's will be an improvement over stock, and most people like that combo. If you find it's not enough, you can always go back to your current tires. Unfortunately it would be more work but it's nice to have that option

When you get the gears done, you should go to an axle shop or off road shop that has done several jeep gear swaps. Yukon gears are very good and made in the USA. You want to make sure that you don't order the parts yourself. Gears are very easy to screw up and a screw up can get expensive real fast. If you just tell the shop that you want 5.13 (or 5.38 if rubicon) Yukon gears, they will be able to order everything needed for installation. It's also good if they order everything because if something goes wrong they are the only ones to blame and they will fix the mistake. I've never heard of these mistakes taking place but with something like gears it's better safe than sorry
02-21-2012 08:36 PM
joe002 I like 5.38s and 35s: http://www.wranglerforum.com/f33/aut...38s-89391.html
02-21-2012 08:32 PM
kbwwolf
Quote:
Originally Posted by johnsen View Post
Gracias again Compadre..I'm thinking 5:13's or 5:38's..then re-install the 35's..looking for a smooth High way ride..off road "time" will be cruising through the desert, and beaches in SoCal...also trailer a couple of dirt bikes...thaks again..you Guys have been more than helpful..actually feel encouraged about the Jeep again .J
No problem. You were kinda amped up when you stormed in here. Understandable.

Personally, I'd advise you to go to the 5.38's if you're gonna run 35's.

Another guy on here, Jimbo, would back that up, I'm pretty sure. He lives out in NV, and is always traveling through the mountains of CA, NV, NM. He's got a lot of knowledge about the gearing, auto and 3.8L combos, and how to get the most out of em.

I've got a '12 with 3.73's, and will be regearing my rig to 4.88 in the next few months. The 3.6 and 3.8 are definitely two different animals, but generally, the 3.8 needs to be about 2 full gear ratios lower to run similar to the 3.6. At least, rpm-wise.

Anyway, good luck with it, and welcome to WF.
02-21-2012 08:20 PM
johnsen Gracias again Compadre..I'm thinking 5:13's or 5:38's..then re-install the 35's..looking for a smooth High way ride..off road "time" will be cruising through the desert, and beaches in SoCal...also trailer a couple of dirt bikes...thaks again..you Guys have been more than helpful..actually feel encouraged about the Jeep again .J
02-21-2012 08:07 PM
kbwwolf
Quote:
Originally Posted by johnsen View Post
Thanks..J
De nada.

Here are a couple of threads that might help, both through elimination of possibilities and suggestions of ways it's been handled by others.

3.8 Engine Power Fix
regearing 3.73 auto 4 door jk sahara r18
02-21-2012 08:03 PM
johnsen Thanks..J
02-21-2012 07:58 PM
kbwwolf
Quote:
Originally Posted by johnsen View Post
Thanks again Pal.. what about the 5:38's and 35's..where would that put my RPM's on the Freeway at 80 MPH ?..J
Didn't you test drive the thing before you bought it? Hmm.

Anyway, I'm sure you can extrapolate.


This image has been resized. Click this bar to view the full image. The original image is sized %1%2.
02-21-2012 07:41 PM
johnsen Thanks again Pal.. what about the 5:38's and 35's..where would that put my RPM's on the Freeway at 80 MPH ?..J
02-21-2012 07:21 PM
jkjeeper06
Quote:
Originally Posted by johnsen
Now we are getting somewhere.Thanks..had the sports cars..Porsches, etc..the Jeep is great for Surfing and Desert runs for some "range" time...I appreciate your help..think gearing is the answer..J
Especially with the auto, gearing can really help. If you look at a dyno chart of the engine, if you can get your highway RPM's to 2500ish you will feel a huge increase in power. Jimbox runs 5.38 with 33" tires and loves that combo. Another member had 5.13 and 32"s and loved that. 37" tires and 5.13 would feel like its closer to stock tho so stay below that size and it'll be an improvement. My theory is that if you pay all that money to regear, which is close to the same price no matter what gears you put in, you might as well go to the largest.

4.56 are not worth it tho. Even tho it looks like an improvement, it's not worth all that money
02-21-2012 07:08 PM
johnsen Now we are getting somewhere.Thanks..had the sports cars..Porsches, etc..the Jeep is great for Surfing and Desert runs for some "range" time...I appreciate your help..think gearing is the answer..J
02-21-2012 07:08 PM
Sgt.slaughter Is a JEEP! Go get a sports car if you want to drag race Next time test drive the vehicle before purchasing! I
02-21-2012 07:07 PM
Phishe Oh boy. :-D
02-21-2012 07:05 PM
johnsen Thanks..but not quite the response I was looking for...I Wish that was an option..Thx..J
02-21-2012 07:02 PM
jkjeeper06
Quote:
Originally Posted by johnsen
2011 Wrangler Unlimited..3.8 V6..there is my Problem..I like the drive, handling, brakes..steering radius..looks...but the lack of POWER is embarrasing..This thing has to be the most gutless vehicle..I have ever owned..to be honest..if I had known..I would not have purchased !!!..It was worse with the 35's..no running 32.5's and a MOPAR CAI..short of gearing..what can be done to kick this Mule to work !?..Any suggestions would be appreciated
CAI's are generally frowned upon here as it is believed they give worse protection/filtration and almost 0 gain in power. Your solutions depend on how much money you want to put into it.

1) If you have 20k then get a 6.4L srt8 motor in it.
2)That's probably not feasible so you could start out with gears. If you have an auto you shouldn't get less than 5.13 gears. 4.88 gears on a stick. -$2000-3000
3) ripp supercharger-3000-5000
4) wranglers have an amazing trade in value(actually THE best): you can trade it for a new sports car

If you do 2 and 3 you'll never complain about power again. Hopefully it doesn't come to #4 but if you can't either live with the power or fix it, it is always an option
02-21-2012 06:57 PM
lolpetewtf Get a 2012.
02-21-2012 06:54 PM
johnsen
First Jeep

2011 Wrangler Unlimited..3.8 V6..there is my Problem..I like the drive, handling, brakes..steering radius..looks...but the lack of POWER is embarrasing..This thing has to be the most gutless vehicle..I have ever owned..to be honest..if I had known..I would not have purchased !!!..It was worse with the 35's..no running 32.5's and a MOPAR CAI..short of gearing..what can be done to kick this Mule to work !?..Any suggestions would be appreciated

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