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Topic Review (Newest First)
05-12-2012 06:42 AM
royboy54174
4" skyjacker

I bought a skyjacker 4-5" on craigslist two weeks ago, new in box with drop ptiman arm, all for $425.00 including shocks. The lift is great for the money, hands down even at $615.00 unless your gonna go fly over rough terrain at 60mph. Thats not what I do, I go thru mud, sand, etc. I have 35 toyo's and no rubbing, did with the 2" kit with 33's. Ride is firm and not to my liking, but I'll upgrade to better shocks later on. It's a wifey and jeep money thing. LOL Can't go wrong with this kit unless you have a bottomless wallet and only want the best. RK is my choice in the future or Teraflex. Good luck on whatever you do.
05-12-2012 01:13 AM
Solidnuzz
Quote:
Originally Posted by JKralph View Post
I think he has a sport, but didn't say if he had 3.21 or 3.73
3.73 gears
05-11-2012 12:26 AM
wmwhitey OP I have a 4" lift and 35's and the issues you will run into are.

1. also buy extended brake lines or you cant flex hard and might brake a line if you disconnect your sway bar.

2. If you live in FL you will not need a regear unless you want to get stock MPG back but if you live is a state with a hill larger than a speed bump you will do a lot of down shifting to get to the top I live in Hawaii and will be going to 4:88 gears soon.

3. No need in a new DS unless you are going to be going rock crawling every day to work you stock will work fine.

4. If the rims you get dont have the proper back spacing you will need at least one and a half inch wheel spacers.

Also look at my pics with the 4" lift I can easily fit 37's under my jeep like I said I already have 35's. There is something else I am forgetting but cant think of it rite now.
05-11-2012 12:19 AM
JKralph I think he has a sport, but didn't say if he had 3.21 or 3.73
05-11-2012 12:13 AM
pluke the 2 Ah. I c you meant a manual.

Honestly, if you got 410 gearing 456s would be a waste of $1200 for regearing.
05-11-2012 12:11 AM
pluke the 2
Quote:
Originally Posted by Solidnuzz
Well according to that 4.56 would be great with a manual. Which is what i have so thats good.
A stock jeep 07-12 does not have 456s. At most, you got 410s if you got a rubicon...
05-11-2012 12:00 AM
kbwwolf
Quote:
Originally Posted by Solidnuzz View Post
doesnt the new 3.6 have even more horsepower though? i believe stock 2012 jks have 285 hp
It does. Look at the difference in the 3.8L and 3.6L charts for, say, 34" tires and 4.56 gears on a manual. BIG difference.
05-10-2012 11:58 PM
kbwwolf
Quote:
Originally Posted by JKralph View Post
my mistake, here it is:


Last year I did about a full day's research on gearing...using the wrong chart. Couldn't figure out why the #'s seemed so wrong. Oops.

One thing for folks looking at the charts: it's based on ACTUAL tire size, not what the tire is categorized as by the manufacturer. In other words, if you're reading the chart for "35's", use the rpms for the 34" tires.
05-10-2012 11:58 PM
Solidnuzz Well according to that 4.56 would be great with a manual. Which is what i have so thats good.
05-10-2012 11:56 PM
Solidnuzz doesnt the new 3.6 have even more horsepower though? i believe stock 2012 jks have 285 hp
05-10-2012 11:53 PM
JKralph my mistake, here it is:
05-10-2012 11:34 PM
JKralph you're right
05-10-2012 11:23 PM
kbwwolf
Quote:
Originally Posted by JKralph View Post
as promised, the chart:
That's for the 3.8L engine. OP has a 3.6.
05-10-2012 11:17 PM
JKralph as promised, the chart:
05-10-2012 10:35 PM
Solidnuzz Thankyou all for your input. I love this website. Everyone here loves jeeps and is very helpful!
05-10-2012 10:28 PM
Solidnuzz Sounds good. seems like a decision to be made after the install.
05-10-2012 10:21 PM
Destal A lot of people will say they felt power loss upgrading, but if you are set on the lift and tires, I'd say drive it for a bit. If you feel like it isn't up to speed anymore, then upgrade. I want to eventually run 35's and I think I decided to go with 4.56 when I do.
05-10-2012 10:19 PM
JKralph I'm thinking of regearing to 4.88, too. You definitely don't HAVE to regear, but doing so will restore (or exceed) the power you lost by putting bigger meats on. MTH has a nice graph showing rpm range, tire size, and gear ratios. I'll post it soon as i can get to a real computer...
05-10-2012 10:19 PM
kbwwolf
Quote:
Originally Posted by Solidnuzz View Post
Alright sounds good thanks. I know i will need to re gear too most likely. I have heard you can get by with the stock gears but also heard its better to go to a 4.56 or 4.88 gear ratio i believe. do you really have to do that with 35 inch tires?
Best bet with the '12 and 35's/gearing is to drive it and see. Some have no problems with it; others do.

I've got 3.73 gears and 35's, and plan on getting 4.56 gears this summer. That'll put my rpms right around the sweet spot (2500 rpm) @ 70 mph in 6th gear. But I've got a manual, and auto/manual are a little different in how they respond to gearing.

Definitely drive it and see what you think. If you decide you don't need to regear, then – yeeeeha! – you've got $1500 to blow on other mods.
05-10-2012 09:55 PM
Solidnuzz Alright sounds good thanks. I know i will need to re gear too most likely. I have heard you can get by with the stock gears but also heard its better to go to a 4.56 or 4.88 gear ratio i believe. do you really have to do that with 35 inch tires?
05-10-2012 09:50 PM
kbwwolf
Quote:
Originally Posted by Solidnuzz View Post
So do you recomend the teraflex 2.5 inch lift then?
Teraflex is good. You can get a 2.5" lift with Bilstein 5100 shocks from Dave @ Northridge 4x4 for $775 ($795 w/the TF exhaust spacer, I believe, which will fix the stock ds/exhaust pipe issue on the '12).

Rock Krawler also makes a good 2.5" lift. And OME (Old Man Emu) has a 2" HD lift that'll give you tons of flex.

You can clear 35's with a 2.5" lift, and if you put BW flatties on (or trim the stock fenders yourself), you can run 37's.

And with the 2.5" lifts, you won't have to mess with ds replacement. Although, if you're gonna run 35's or larger and plan to wheel it regularly, you'd be smart to consider beefing up your D30 front axle (not necessary with the D44 on the Rubi).
05-10-2012 09:44 PM
JKralph I've heard good things about that lift, though I don't have it.

i found this thread helpful: http://www.wranglerforum.com/f33/jk-...ews-25157.html
05-10-2012 09:42 PM
Solidnuzz So do you recomend the teraflex 2.5 inch lift then?
05-10-2012 09:37 PM
JKralph most lift kits come with bump stop extensions
05-10-2012 09:34 PM
JKralph I think so long as your wheels have the proper backspacing and you throw some bump stop extensions on the front and rear you'll be fine
05-10-2012 09:27 PM
Solidnuzz Wont you get a lot of rub though? Going over rocks and what not?
05-10-2012 09:24 PM
JKralph you only need about 2~2.5" lift to run 35's comfortably.
05-10-2012 09:22 PM
Solidnuzz Also what would be a good brand and what would the price of new ds cost?
05-10-2012 09:21 PM
Solidnuzz 37"? It says it will only clear 35"s and i have read in other threads that a 4 inch lift will only clears 35 inch tires.
05-10-2012 09:16 PM
kbwwolf
Quote:
Originally Posted by Solidnuzz View Post
So i am looking at buying the sky jacker 4" lift with shocks for my jeep. I have been looking around and been finding different answers. It is not an unlimited and just a sport. My question is will i have problems with the drive shaft on the 2012 wranglers with this lift. If so how much will it cost to replace them. Any other problems that i might run into that anyone knows about would also be greatly appreciated.
Why 4"? You wanna run 37" or bigger tires? In that case, new ds would be the least of your concerns.

I'm sure there are folks out there who are gonna say, "I'm running my stock ds with a 4" lift, have 250,000 miles, all over Volkswagen-sized boulders, and I've never had a problem."

But if it was my Jeep, I'd change the ds.
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