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3.5"-4" lift question


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For a lift of this size what do i have to upgrade in the front of my truck(already decided what i'm doing with the rear) i know i need lower control arms, do i need uppers? should they be adjustable? do i need a new track bar? drop pitman arm? also looking for good shocks, i don't want too harsh of a ride as this is my dd, but i still want to be able to run some trails. only going w/31x10.5s.

 

thanks for the help

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For a lift of this size what do i have to upgrade in the front of my truck(already decided what i'm doing with the rear) i know i need lower control arms, do i need uppers? should they be adjustable? do i need a new track bar? drop pitman arm? also looking for good shocks, i don't want too harsh of a ride as this is my dd, but i still want to be able to run some trails. only going w/31x10.5s.

 

thanks for the help

 

definitely lower control arms, and just to be safe probably uppers? you need a sway bar drop bracket or some nice long disconnects. and with anything over a 3 inch lift you should probably get a new trackbar...an adjustable one so you can make it perfect for your ride. I've got a 3 inch rough country lift on mine with Rough Country Nitro 9000 Shocks. it's an add-a-leaf kit but those shocks make it ride hella smooth. it's real nice i like those.

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you will need new lowers.

Uppers are optional at that height, but beware of your pinion angle and caster. You might end up OK, you might now, so don't be surprised if you need new uppers.

 

If it's street only you could redrill the axle side bracket for the trackbar to center the axle, but it will bind at that height if you flex the suspension. New trackbar recommended.

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If i were you I would put in some 1" spacers up front and cut the fenders or remove the flares and make it look nice and stock looking with a trim and roll of the metal. But thats just me. You can run 31s with no lift but you can't stuff to well and with around 1-1.5" you should be able to do it with stock parts. you should be able to go 2-.25 maybe a tad more with just sway bar extensions, adj lower arms, And maybe a drop pitman arm is what i think you should be able to get away with. Maybe someone will provide more that i missed.

 

Cole

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does anybody know where i can get a 4" mj/xj lift? allready know what I'm doing to the rear just can't find a 4" lift. and i don't really want to use a coil spacer.

 

thanks,

 

Rich

 

I'd go with 3.5" springs, closest you're going to find, then use an extra factory rubber isolator to get the other 1/2"

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Lift springs aren't always all that accurate. With 3.5" coils you could get 4.5 out of them or only 3.

 

 

that doesn't give me a warm fuzzy.... How do i know what i'm gonna get??? :???:

Pete, I'm curious if you mean lift from the trucks current height or lift from factory varying?

 

I'm sure engine and bumpers are going to make things change.

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There's all sorts of variability to deal with. First there's the variability in the new coils themselves. Frequently they will be slightly higher than advertised and then settle over a short time (hopefully to the proper height). Then there's variation in Jeep weight. The engine, bumper, etc all affect the ride height. Then there's variability in our trucks rear springs. There's the 2wd/4wd leaf difference or even the amount of sagging that occurs over 20 years which can range from nothing to severe. Reusing these leafs (either in SOA or with an AAL) and expecting them to perfectly match a front that's using brand new coils can be an exercise in frustration. And lastly there's personal preference. Some guys like the bed to be perfectly level when empty, others like a slight rake so when it loaded up with gear it won't look like its butt is sagging.

I personally would use the manufacturers numbers only as a guide and have a plan for altering the front or back up to an inch rather than trying to match them down to a 1/2" before I even put the truck on stands.

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