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Old 11-13-2013, 09:41 AM   #1
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now that the jeep is lifted I got a few questions.

Hey everyone haven't been on here in a while but I have a few questions. For starters about maybe 2 months ago I finally got my lift put on my Jeep. Running the TF 3" lift w/ 8 flex arms and 35" Toyo m/t's on 17inch blackrock wheels. (also had a re gear but questions don't really pertain to gearing). After driving for a while (and of course coming and reading threads on here that look like they could be useful info for me) I've got a few parts I think I should buy to help prevent problems in the future and hoping someone could weigh in on it for me. First is a new trackbar for up front. While the stock trackbar works fine I've seen alot of people blaming the death wobble on the front trackbar flexing. Now I don't have any type of death wobble but is this something that could show up in the future? Also i've been told on here it would be wise to invest in a new drive shaft also but I'm not sure why, and for my final question. Ever since the lift has gone on the jeep rides with almost no give in the suspension. I figured this might be because of new shocks and maybe there's a break in period for them (never had brand new shocks on anything before) but lately I been wondering if I've maybe got to much air in my tires. Originally when we put them on they were too low from the shop that mounted and balanced them and every tiny rock in the road made my jeep want to fly off into the ditch so we added air. Just wondering what the correct tp is for E rated tires? I know what the max tp is in them but since the jeep is lighter than most of the pickup trucks you'd put them on wondering what tp most of you are running? Any advice is greatly appreciated.

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Old 11-13-2013, 09:51 AM   #2
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Do the chalk test for optimal psi. I'm guessing 25 for you.

Front track bar should be added with a 3" lift,
Also consider the Northridge 9/16 bolt upgrade.

Do you know your caster angle up front ?
Should be around 4-4.5. Anymore the angle of the driveshaft increases. Many folks run the stock shafts until they need them.

KJ

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Old 11-13-2013, 10:01 AM   #3
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Quote:
Originally Posted by Callmebyars View Post
First is a new trackbar for up front. While the stock trackbar works fine I've seen alot of people blaming the death wobble on the front trackbar flexing. Now I don't have any type of death wobble but is this something that could show up in the future? Also i've been told on here it would be wise to invest in a new drive shaft also but I'm not sure why, and for my final question. Ever since the lift has gone on the jeep rides with almost no give in the suspension. I figured this might be because of new shocks and maybe there's a break in period for them (never had brand new shocks on anything before) but lately I been wondering if I've maybe got to much air in my tires. Originally when we put them on they were too low from the shop that mounted and balanced them and every tiny rock in the road made my jeep want to fly off into the ditch so we added air. Just wondering what the correct tp is for E rated tires? .
first question - without question - buy a TeraFlex monster forged adjustable track bar... buy the upgraded bolt kit with it. the northridge kit that KJeeper references below is the one i would recommend. i'm running the TF TB and bolt kit, pretty sure he is too. the stuff is worth every penny (TB and bolt upgrade)

second. here's the crux - if you wheel, your stock drive shaft is going to contact the transmission pan. if you disconnect, when you're wheeling, the articulation is going to allow the stock DS to rub... and you'll create a weap or worse a leak there - ask me how i know this.... so, you might want to kick around at least a front DS. i'm running a tom woods 1310. happy with it... still running the stocker in the rear (with a 4.5" short arm and 1" spacers on top of that... )

third - i'm running the same toyo mts (37s though) my happy place is right around 28 or 29... i typically run them at 31 though. i like them a touch harder for the highway driving i do. and yes, 1 or 2 psi does make a difference..

Quote:
Originally Posted by kjeeper10 View Post
Do the chalk test for optimal psi. I'm guessing 25 for you.

Front track bar should be added with a 3" lift,
Also consider the Northridge 9/16 bolt upgrade.

Do you know your caster angle up front ?
Should be around 4-4.5. Anymore the angle of the driveshaft increases. Many folks run the stock shafts until they need them.

KJ
^^ basically what he said!
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Old 11-13-2013, 10:19 AM   #4
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Awesome, I was already looking at the TF monster adjustable track bar but the bolt upgrade never crossed my mind. I guess that also confirms the driveshaft purchase in the future but I sorta saw that coming before I even bought the lift after doing some research, just didn't see any issues in the driveshaft after the install. I haven't disconnected the front sway bar or really wheeled in it yet short of a muddy road and def haven't flexed it (yet). As much as I'd love to wheel this thing every day it's my DD so I wanna try to toughen it up underneath first. Also don't even wanna mention what the tp I have in my tires is but it's much higher than 29-31. I think I'll try 30 today and see what happens. Oh and I actually have one more question I forgot in the original thread so here it is.

Jeep pulls to the right on all road surfaces (even flat pavement). Started after the install and I figured once I got an alignment that would solve the problem but nope, still a pull. Not a dangerous pull but def a noticable one. Any ideas what could cause this? Would an aftermarket steering stabilizer be something I should be looking for in my future too?
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Old 11-13-2013, 10:27 AM   #5
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tire pressure first. that might help your pull. sounds like your toe might not be correct, or one of the adjustable arms isn't square?

i would start with tire pressure. also can check to ensure that your steering stabilizer was realigned properly on the tie rod after the lift was installed. have someone turn your steering wheel (from full left lock to full right lock) the steering stabilizer should travel the entire time.

if it binds, there's your problem. again, i would start with your tire pressure first though.
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Old 11-13-2013, 10:28 AM   #6
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mud terrain tires do tend to wander a bit more on the road, more so than ATs... forgot to mention that.
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Old 11-13-2013, 10:43 AM   #7
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with a 3" lift and stock tracbar you axle is not centered under your front end, may cause pulling to one side. don't be afraid of running different tire pressures side to side. I run 4 different pressures, passenger side being higher than driver side, roads in different areas have different crowns so it may take awhile to balance it out. all of my pressures are within a 1/2 pound of each other, but my Jeep tracks straight, worth the effort. a new tracbar might be easier .
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Old 11-13-2013, 10:44 AM   #8
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Quote:
Originally Posted by tabber02 View Post
mud terrain tires do tend to wander a bit more on the road, more so than ATs... forgot to mention that.
And some stabilizers push the jeep to one side.
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Old 11-13-2013, 10:50 AM   #9
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Quote:
Originally Posted by jklarry View Post
with a 3" lift and stock tracbar you axle is not centered under your front end, may cause pulling to one side. don't be afraid of running different tire pressures side to side. I run 4 different pressures, passenger side being higher than driver side, roads in different areas have different crowns so it may take awhile to balance it out. all of my pressures are within a 1/2 pound of each other, but my Jeep tracks straight, worth the effort. a new tracbar might be easier .
Interesting approach to linear tracking. However a 0.5 psi differential between tires will not provide the desired effect, at least not consistently. Simple differences in materials and manufacturing will inconsistenlty vary the tire pressure that much as the tires heat up but if it works for you there is no arguing with success. :0

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