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Should I get and install a new trackbar bracket or is the adjustable enough?

Should I install the rear uppers and align my pinion angle? ...........

Yes and no. With only 2.5" lift you do not need to raise the track bar mounting point since you have an adjustable track bar BUT the factory brackets have a long history of ripping off the axle. The mounting points on the axle need to reinforced somehow either by welding on a new bracket style or a bolt on style.

The 2.5" lift does not require other style drive shafts nor pinion adjustment. You can replace 4 or all 8 control arms but, if you do not want to spend the money you will be just fine at the height you have chosen.

 

also I chose to use the 4dr kit which gave me a little over 3" front and just about 3" rear

 

Then I would suggest you replace all 8 arms with at least 4 being adjustable, both driveshafts, and at least the front track bar being adjustable.

This way you have the axles in the center of the wheel wells, center the front axle under the jeep, and can adjust the pinion angles. The extra inch cost a hell-of-a-lot. You also gain more articulation with swivel joints like johnny joints, heim joint, or the now defunk RE super-flex joints in the new control arms.

If you keep the stock CAs you only have stock articulation and at that angle the DSs are not going to last long.

 

I installed the basic TF 2.5" spring kit in my daughters 2dr. Stock trackbars and control arms a little bit stiffer ride, but handles like a dream.

 

ok, I have the front and rear monster track bars installed and front lower adjustable control arms in and set for 4.2 4.4 caster and tracks and handles great.

I do have the rear upper adjustable arms but I could not get them in, even at the lowest setting. Is there a trick to get the pinion angle rotated back far enough to align the bolt holes? Also Teraflex instructions has a little note that 2dr's with 3" lift was highly recommended to use the factory arms do to driveshaft angles so I put the stock back in.

The only thing I notice is a slight flighty feeling in the back after hitting bumps so I am wondering if it is because I did not use the track bar bracket and just used the adjustable track bar.

It drives great now after all my adjustments and I had it aligned and all is within specs.

 

The "trick" is to place a floor jack under the pinion and rotate the housing where the angle needs to be. Have either the lowers or uppers installed, rotate where you want it then, install the other set.

You lost me on the bit about putting the factory arms back in. The purpose of having only 2 adjustable CAs per axle is to change the pinion angle. When you lift it so high replacing the other two with longer units puts the wheelbase back where it should be. Also, it prevents some rubbing issues. The longer ones either have to be made for the size lift you have or adjustable as well.

Your flighty feeling is probably just the effect of driving a lifted vehicle. Technically you do have two different roll centers if the rear track bar angle does not match the front BUT it should not be enough for you to feel it.

Either way new drive shafts should be on your "to get" list.

Edit: I'm pretty sure the instructions were talking about DS length and not angle. The axles moves in a arch and never gets farther from the transfer case during the stroke. Once you put in longer CAs then the axle is farther away and a longer DS is needed. Some say you are not suppose to adjust for pinion angle with the factory shafts; I don't agree. Also, at your height/angle you need the old school DSs and they do require pinion angle adjustment.

 

I initially bought both front lower and rear upper control arms.

I installed the front lower and got that into spec for a balance of driveline angle and caster which worked well.

I tried to install the rear uppers and could not rotate the pinion angle enough to install the rear upper adjustables even when I had them set to the minimum length. So I just put the factory rear uppers back in.

Teraflex has a note on the instructions for control arm install stating that the rear factory uppers are highly recommended for a 2dr with 3" lift due to driveline angles so I just put the factory ones back in.

The pinion angle is off and is at about 11 - 12 degrees and I would like to get those arms in to align everything but don't know now due to Teraflex's note on using the factory control arms. I will call them tomorrow and see what the deal is.

 

I run a Teraflex 2.5 coil lift and added rear uppers not long ago to adjust for an aftermarket drive shaft. I put jack stands under the rear axle set at ride height, pulled rear wheels so I could get to everything and used the floor jack to adjust pinion angle where I wanted it. Then I measured hole centers and adjusted control arms to match. Bolted every back together and done. Got ride of the vibration I had acquired with ds at wrong angle.

 

do you have a 2dr?

did you have any problems with the rear coils bowing excessively after aligning pinion?

 

see note 3 at the bottom it states it is highly recommended to install the factory uppers on the 2dr with a 3" lift on the other hand they give a measurement? I am close to 3" so do I need them?

 

Yep, it's a 2 door. I have the Rock Krawler wedges so I don't have problems with the springs. My lower control arms & my track bars are RK as well. My upper font control arms are stock and upper rear are Teraflex. I've pieced this together over time but it works well.

 

OK, I got my rear upper adjustable arms on no problem today and aligned my pinion / driveshaft and it is perfect!

Teraflex is sending me out a new track bar bracket today also!:bounce:

a question for people with these 4dr kits on the 2dr model....How in the the world can you stand driving it with just the kit installed and no control arms or trackbars? Mine vibrated and rode like shit, The pinion angles were way off! I am glad I got the front lowers, rear uppers and front/rear adjustable track bars as recommended by dave @ northridge otherwise I would have been extremely disappointed with my ride. all in all it tracks, handles and rides better than it did stock and I am one happy Teraflex installer!

 

a question for people with these 4dr kits on the 2dr model....How in the the world can you stand driving it with just the kit installed and no control arms or trackbars? Mine vibrated and rode like shit, The pinion angles were way off!

Don't know whats up my friend. I put the same kit w/o adjustable control arms or trackbars in my daughters 2dr 3 months ago without a hitch. No vibes no wobbles, just a little stiffer ride. Handles as good as or better then stock. Doesn't look quite as high though.

 

I would definately put the rear track bar bracket on, it will greatly impove the handling because it raised the rear roll center. Once you do that you know even need the adjustable track bar