Need some quick help with lift and tire setups... - JeepForum.com

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post #1 of 41 Old 04-25-2007, 03:17 PM Thread Starter
L8 APEKS
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Need some quick help with lift and tire setups...

Hey all,

I'm in a 2001 XJ. All stock.

I''m looking for a total of 4.5" lift and 32 x 11.5" tires, and the cheapest way to do it without doing it completely ghetto.

Here were my original plans: A complete 4.5" kit w/ full spring packs and shocks, black Rock Crawlers (about 55 each...15x8" with 4.5" backspacing).

Now that I'm realizing I won't have that kind of money, I was wondering about alternatives.

I was wondering what people thought about buying a 3.5" AAL or full spring kit, and then adding a budget boost to it (coil spacers and shackles) to get me a net lift of at least 4.5".

Then, I was wondering about putting the 11.5" tires on my stock wheels and running a 1" spacer (netting a backspacing of about 4.25").

Last, but not least...are shocks required or can I live without them for a bit? Mine are in good shape, but I'm guessing it's travel that would be the issue.

Let me know if this "Plan B" will work. Thanks!


-Sean
The OC, California
2001 XJ::naxja.org
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post #2 of 41 Old 04-25-2007, 03:28 PM
XJK
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with trimming and proper bumpstoping/backspacing you can fit 32's under a RE 3.5 SF Kit w/Full Packs. Its just a matter of do you want to trim?

i would not go with a AAL because of the much stiffer ride and the sagging that will occur after use on the stock packs.

also the stock shocks will not fit on a 4.5 let alone a 3.5 lift, so you will have to buy some new ones.

_______
Another option that you can look into is going with RE 3.5/4.5 coils in the front and making a bastard pack for the rear. You will loose some ride quality but you wont have the sagging issue that the AAL creates.

-Kyle

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post #3 of 41 Old 04-25-2007, 05:11 PM
shimbii
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Doing a 4.5" kit "right" with 32's will be tough w/o spending considerable cash due to the need for SYE, CV driveshaft, gears, etc etc. It really seems like there is a large jump in "extras" and $ needed to properly go from 3.5 to 4.5"

In my opinion, your options include:

1. Keep and eye out for cheap used lift parts and piece together a 4.5" kit and do all installs yourself.

-or-

2. Just go for 31's and a 3.5" kit. This option will lessen the need of some of the extras such as gears, SYE, etc. Even then, some will still argue that things like a SYE are necessary at 3.5".

1998 XJ
AX-15 5-speed
RE 4.5" Lift
32x11.5 Maxxis Bighorns
4:10's with ARB's Front and Rear

Last edited by shimbii; 04-25-2007 at 06:03 PM.
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post #4 of 41 Old 04-25-2007, 05:26 PM
XJK
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you still WILL need a SYE with a 3.5 lift, but you can run 31s without regearing you will just loose some gas milage.

-kyle

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post #5 of 41 Old 04-25-2007, 05:58 PM
basso4735
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Quote:
Originally Posted by Kyle_99'XJ
you still WILL need a SYE with a 3.5 lift, but you can run 31s without regearing you will gain some gas mileage and lose some power.

-kyle
fixed.

.

Build Thread- Includes bastard pack and cheap 3" lift info

Red 97 XJ Sport 5 Speed - Lifted 3" - Sound system - C4X4 Tow Hooks - Hella 500s
Black 96 XJ Classic - Stocker on 31s - SOLD
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post #6 of 41 Old 04-25-2007, 06:31 PM
XJK
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? your not going to gain gas milage from a stock tire to a 31. you will get better gas milage going from 32's to 31's but your not going to gain any when switching to 31's from stock.

-kyle

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post #7 of 41 Old 04-25-2007, 06:32 PM
basso4735
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yes, you do.

heres a chart that shows it.

http://www.4lo.com/calc/geartable.htm


Build Thread- Includes bastard pack and cheap 3" lift info

Red 97 XJ Sport 5 Speed - Lifted 3" - Sound system - C4X4 Tow Hooks - Hella 500s
Black 96 XJ Classic - Stocker on 31s - SOLD
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post #8 of 41 Old 04-25-2007, 06:36 PM
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Quote:
Originally Posted by basso4735
yes, you do.

heres a chart that shows it.

http://www.4lo.com/calc/geartable.htm

thats wierd, at first, all i saw in your post is "yes, you do" but when i went to reply, i can see everything else.

and your chart shows nothing, it accually goes against what you are saying.

1998 XJ Sport
7" lift, RE kit with spacer and shackles, locked front and rear
no rear sway bar, quick discos in front (never attached)
Custom front bumper with Ramsey 8000lb. Winch
33x12.50 Pro Comp X-Terrians (suck) soon to be 35x12.50 Maxxis Bighorns on American Racing black steelies
Surco roof rack with 4 KC Daylighers
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post #9 of 41 Old 04-25-2007, 06:36 PM
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Quote:
Originally Posted by txjeep103
thats wierd, at first, all i saw in your post is "yes, you do" but when i went to reply, i can see everything else.
i edited it to clarify. but quick enough that it didnt say i did. hehe.

Build Thread- Includes bastard pack and cheap 3" lift info

Red 97 XJ Sport 5 Speed - Lifted 3" - Sound system - C4X4 Tow Hooks - Hella 500s
Black 96 XJ Classic - Stocker on 31s - SOLD
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post #10 of 41 Old 04-25-2007, 06:38 PM
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Quote:
Originally Posted by basso4735
i edited it to clarify. but quick enough that it didnt say i did. hehe.
oh, ok, but the chart still proves nothing

1998 XJ Sport
7" lift, RE kit with spacer and shackles, locked front and rear
no rear sway bar, quick discos in front (never attached)
Custom front bumper with Ramsey 8000lb. Winch
33x12.50 Pro Comp X-Terrians (suck) soon to be 35x12.50 Maxxis Bighorns on American Racing black steelies
Surco roof rack with 4 KC Daylighers
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post #11 of 41 Old 04-25-2007, 06:40 PM
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why not? lol. lower rpms is going to give you better gas mileage.

Build Thread- Includes bastard pack and cheap 3" lift info

Red 97 XJ Sport 5 Speed - Lifted 3" - Sound system - C4X4 Tow Hooks - Hella 500s
Black 96 XJ Classic - Stocker on 31s - SOLD
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post #12 of 41 Old 04-25-2007, 06:43 PM
txjeep103
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Quote:
Originally Posted by basso4735
why not? lol. lower rpms is going to give you better gas mileage.
ok, so if i have 44 inch tires on my jeep with a 3.31 gear ratio, im going to get better gas milage?

1998 XJ Sport
7" lift, RE kit with spacer and shackles, locked front and rear
no rear sway bar, quick discos in front (never attached)
Custom front bumper with Ramsey 8000lb. Winch
33x12.50 Pro Comp X-Terrians (suck) soon to be 35x12.50 Maxxis Bighorns on American Racing black steelies
Surco roof rack with 4 KC Daylighers
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post #13 of 41 Old 04-25-2007, 06:44 PM
basso4735
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uhh well good luck driving that thing. did you look at the chart? the 31" tires are almost in the yellow section with stock gears, which is better fuel economy.

Build Thread- Includes bastard pack and cheap 3" lift info

Red 97 XJ Sport 5 Speed - Lifted 3" - Sound system - C4X4 Tow Hooks - Hella 500s
Black 96 XJ Classic - Stocker on 31s - SOLD
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post #14 of 41 Old 04-25-2007, 06:46 PM
txjeep103
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Quote:
Originally Posted by basso4735
uhh well good luck driving that thing. did you look at the chart? the 31" tires are almost in the yellow section with stock gears, which is better fuel economy.
stock gear ratio is 3.55

1998 XJ Sport
7" lift, RE kit with spacer and shackles, locked front and rear
no rear sway bar, quick discos in front (never attached)
Custom front bumper with Ramsey 8000lb. Winch
33x12.50 Pro Comp X-Terrians (suck) soon to be 35x12.50 Maxxis Bighorns on American Racing black steelies
Surco roof rack with 4 KC Daylighers
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post #15 of 41 Old 04-25-2007, 06:47 PM
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right, i said almost. 30s are. all im saying is that i can cruise on the highway at 60-65 right about 2k rpms, and with stock tires it was above that. hence, i get overall better gas mileage with my 31s.

Build Thread- Includes bastard pack and cheap 3" lift info

Red 97 XJ Sport 5 Speed - Lifted 3" - Sound system - C4X4 Tow Hooks - Hella 500s
Black 96 XJ Classic - Stocker on 31s - SOLD
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