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Old 02-25-2012, 01:47 PM   #31
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Quote:
Originally Posted by ESP

Some beefy arms man

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Old 02-25-2012, 01:58 PM   #32
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Some beefy arms man
My neighbor Xnewyorker put them on his JKUR with a 2.5 and they looked good. Always nice to see new beefer parts on ones rig. Keep us updated and post up a spec read out on your caster/pinion and alignment info once you get them on.

I've been looking at the fixed one's but I really don't think I need them just want em.

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Old 02-25-2012, 02:04 PM   #33
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Eric..., you check your caster at all?


Got my CA's
No, I failed to take the before measurement. I was in such a fervor to get it done once I figured it out.

Nice CA's. Maybe I'll get some decals for mine...
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Old 02-25-2012, 02:05 PM   #34
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Eric..., you check your caster at all?


Got my CA's
JEALOUS.

I think I may go with LCA's. I'm not liking my ride after digging underneath. I'm starting to freak out a little going fast.
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Old 02-25-2012, 02:08 PM   #35
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JEALOUS.

I think I may go with LCA's. I'm not liking my ride after digging underneath. I'm starting to freak out a little going fast.
Slow down?
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Old 02-25-2012, 02:20 PM   #36
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Lol.

I did grab a magnetic angle from work.

Stuck it where it's supposed to go and got what looks to be 4.5-5, which is good

Or maybe I'm reading it wrong

No highway wonder/steering issues.
But is a bid more fidgety when I hit bumps at at higher speeds. Then a vibe that is felt up in the wheel. Hard to explain.

AEV nails it is their description for the contraction brackets. Why they do what they do.

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Old 02-25-2012, 02:31 PM   #37
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Sounds like you may be measuring wrong. It is from the bottom of the spring perch, not the top. It is from where the coil actually seats to the frame.
I thought so too, but here are some pics:

Rear Spring:


Front Spring:



Random-ish but what is the highlighted area from here:
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Old 02-25-2012, 02:32 PM   #38
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Slow down?
Obviously, you've never been to Cali
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Old 02-25-2012, 02:35 PM   #39
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Obviously, you've never been to Cali


Actually was on the PCH not long ago. Good eats out there especially if you like mexi food. Mmmm...
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Old 02-25-2012, 02:39 PM   #40
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Actually was on the PCH not long ago. Good eats out there especially if you like mexi food. Mmmm...
Followed by a trip to the Jon
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Old 02-25-2012, 02:42 PM   #41
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Actually was on the PCH not long ago. Good eats out there especially if you like mexi food. Mmmm...
Love that highway
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Old 02-25-2012, 02:43 PM   #42
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Don't forget--if you check your CASTER angle, you have to be on LEVEL ground-


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Originally Posted by kjeeper10 View Post
Lol.

I did grab a magnetic angle from work.

Stuck it where it's supposed to go and got what looks to be 4.5-5, which is good

Or maybe I'm reading it wrong

No highway wonder/steering issues.
But is a bid more fidgety when I hit bumps at at higher speeds. Then a vibe that is felt up in the wheel. Hard to explain.

AEV nails it is their description for the contraction brackets. Why they do what they do.

If you checkit in your garage--subtract AT LEAST 1° from your CASTER READING, all garages have at least 1° to 1&1/2° downslope !

You should check your floor angle first !

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Old 02-25-2012, 02:45 PM   #43
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Originally Posted by JIMBOX
Don't forget--if you check your CASTER angle, you have to be on LEVEL ground-

If you checkit in your garage--subtract AT LEAST 1° from your CASTER READING, all garages have at least 1° to 1&1/2° downslope !

You should check your floor angle first !

JIMBO
Yep... Maybe 1

So I'm possibly looking at 3 1/2.
Sound right for 2.5?

Thanks JB
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Old 02-25-2012, 02:46 PM   #44
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Stuck it where it's supposed to go and got what looks to be 4.5-5, which is good


Project-JK says a 3+" should be about 5-6º.
Setting Caster

Quote:
From the factory, your caster angle will be set at +4.2° and if you’ve just installed a 3" or taller lift on your Jeep JK Wrangler and are now running 35" tires or bigger, it is recommend that you increase the amount of caster you have to about +6°~7°. More caster will help your Jeep to drive straight, reduce or eliminate any "flightiness" or "dartiness" you might experience and it will even help prevent your ESP from activating.
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Old 02-25-2012, 02:48 PM   #45
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--NOPE--should be at least 5°-


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Originally Posted by kjeeper10 View Post
Yep... Maybe 1

So I'm possibly looking at 3 1/2.
Sound right for 2.5?

Thanks JB
Mine is 5°-

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Old 02-25-2012, 02:50 PM   #46
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Project-JK says a 3+" should be about 5-6º.
Setting Caster
I did read that.

When does tire size play into it?

So- not so much the lift changing it, we need more caster when lifting and/or running bigger tires?
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Old 02-25-2012, 02:52 PM   #47
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--NOPE--should be at least 5°-

Mine is 5°-

JIMBO

After your LCA install ?

Will be 5+ with the LCA's. According to the seller they should be already set. Will see
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Old 02-25-2012, 02:53 PM   #48
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I did read that.

When does tire size play into it?

So- not so much the lift changing it, we need more caster when lifting and/or running bigger tires?
My understanding, I could be wrong - I am a newb, was that any time you change the default angle of the drive shaft this would be the case. So running bigger tires and a lift just throws it off more versus just tires (which could also cause it).
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Old 02-25-2012, 02:55 PM   #49
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All this talk of castor got me to call up 4wheel parts here in NC to see if they still had my info from when I got them to give me a read out on them. They don't have the info and I can't remember what it was when I got the print out.
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Old 02-25-2012, 02:56 PM   #50
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My understanding, I could be wrong - I am a newb, was that any time you change the default angle of the drive shaft this would be the case. So running bigger tires and a lift just throws it off more versus just tires (which could also cause it).
It's just when you change the height of the suspension.
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Old 02-25-2012, 02:57 PM   #51
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Originally Posted by ESP
All this talk of castor got me to call up 4wheel parts here in NC to see if they still had my info from when I got them to give me a read out on them. They don't have the info and I can't remember what it was when I got the print out.


Before of after the lift?
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Old 02-25-2012, 03:01 PM   #52
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It would have been after because I already had the 2.5 when I got them to install the track bars and give me a spec read out. Ugh...it's on a piece of paper somewhere here but I don't know where it is.
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Old 02-25-2012, 03:04 PM   #53
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I'd call mine up but I'm a little chapped at them. If they had known better, it wouldn't be sitting at ~4º right now

Edit: Did anyone see the pics I posted, I feel like I'm going crazy with those measurements.
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Old 02-25-2012, 03:07 PM   #54
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This was mine. Can't see the numbers though
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Old 02-25-2012, 03:15 PM   #55
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Tire size has nothing to do with front axle CASTER, unless you have different size tires on front/back--

Any lift-even a leveling puck, will change the front axle and UCA/LCA angle of attachment, the "LIFT" will "TILT" the front axle forward-thereby reducing the + caster angle and the (adj) lower control arms (LCAs) will force the angle rearward in the + way-

As long as you stay under 3" lift, the adj LCAs won't compromise the PINION angle-

The adjusted LCAs length, should be at least 23" bolt/bolt for at least 5° + caster angle !

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Old 02-25-2012, 03:19 PM   #56
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Originally Posted by kjeeper10
Eric..., you check your caster at all?

Got my CA's
I forgot to measure my Tj before I lifted it. I want to be sure I measure every thing on this JKU before I start. Can someone fill me in on where I need to take all those measurements.
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Old 02-25-2012, 03:19 PM   #57
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Jimbo you really need to just make this your sig.
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Old 02-25-2012, 03:20 PM   #58
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Tire size has nothing to do with front axle CASTER, unless you have different size tires on front/back--

Any lift-even a leveling puck, will change the front axle and UCA/LCA angle of attachment, the "LIFT" will "TILT" the front axle forward-thereby reducing the + caster angle and the (adj) lower control arms (LCAs) will force the angle rearward in the + way-

As long as you stay under 3" lift, the adj LCAs won't compromise the PINION angle-

The adjusted LCAs length, should be at least 23" bolt/bolt for at least 5° + caster angle !

JIMBO
Spoketh with true wisdom.

Front adjustable LCAs for me it is.
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Old 02-25-2012, 03:21 PM   #59
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Spoketh with true wisdom.

Front adjustable LCAs for me it is.
There are fixed one's for your height that would work just as well.
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Old 02-25-2012, 03:23 PM   #60
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Spoketh with true wisdom.

Front adjustable LCAs for me it is.
That's the truth haha

These TF LCA's are supposed to already be set to 23" eye to eye per JB.
I has asked the seller before I bought them.
He had a 2.5 bb on his JKU I believe

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