My Alignment results - JeepForum.com

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post #1 of 20 Old 06-29-2016, 08:57 AM Thread Starter
JPPCAR
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My Alignment results

So I took my 79 CJ7 in for an Alignment and caster adjustment. I provided the shop with 2,4,6 degree shims. My cj drives pretty straight with very little wondering. At speeds above 60MPH there is a little wondering but nothing crazy. The issue I had was the wheel would not return. I am running 32 x 11.50 MTR tires.

The caster angles were 2.1(left) and 1.7(right). We put in the 4 degree shims. You would think that my angle should increase by 4 degrees. That was not the case. After the Shims the new angle are now 4.8 (Left) and 4.1 (Right)

See attached file.

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post #2 of 20 Old 06-29-2016, 09:03 AM
Matt1981CJ7
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You are still a little shy of where you should be. I found mine returned to center much better at around 7*.

What brand shims did you use? I'm guessing the shims you got weren't very accurate. The Warrior shims I used gave the expected results.

Matt


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post #3 of 20 Old 06-29-2016, 09:48 AM Thread Starter
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Quote:
Originally Posted by Matt1981CJ7 View Post
You are still a little shy of where you should be. I found mine returned to center much better at around 7*.

What brand shims did you use? I'm guessing the shims you got weren't very accurate. The Warrior shims I used gave the expected results.

Matt
These are Warrior Shims. I have 6 degree shims but I am worried that it will put to much stress on my front yoke. My set up is better but not ideal.

The good is that my steering is better.
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post #4 of 20 Old 06-29-2016, 09:59 AM
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A lot of guys run the 6* shims with no problems.

If it concerns you, you could always relocate the spring perches.

Matt


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post #5 of 20 Old 06-29-2016, 12:16 PM Thread Starter
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Quote:
Originally Posted by Matt1981CJ7 View Post
A lot of guys run the 6* shims with no problems.

If it concerns you, you could always relocate the spring perches.

Matt
I will going on a long distance drive over the July 4th weekend. Depending on how the jeep handles I will decide if I will install the the 6* shims.

Thanks
Steve
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post #6 of 20 Old 06-29-2016, 03:14 PM
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If by stress on your front yoke you mean that you're concerned about the pinion angle and the ujoint at the pinion, you shouldn't be too worried about it. The front driveline shouldn't be turning at road speeds (in 2WD with the hubs unlocked). The front driveline is also long enough that the angles generally don't approach the 15 degree recommended maximum operating angle.


The angle of caster didn't change by exactly four degrees because of toe in and camber, which affect caster changes (and vice versa).
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post #7 of 20 Old 06-29-2016, 05:09 PM
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Hope these are steel shims and not the zinc made one that squeeze out.
X2 on 6* shims.
LG

Have'n you along, is like loose'n 2 good men
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post #8 of 20 Old 06-30-2016, 07:19 AM Thread Starter
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Thank you all for responses. I will most likely be swapping out the shims for 6* next week.

I will post the results when I get it done.
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post #9 of 20 Old 06-30-2016, 07:23 AM Thread Starter
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Quote:
Originally Posted by LumpyGrits View Post
Hope these are steel shims and not the zinc made one that squeeze out.
X2 on 6* shims.
LG
Yes these are steel shims
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post #10 of 20 Old 06-30-2016, 02:47 PM
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Yes these are steel shims
Have you ck'd them with a magnet?
LG

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post #11 of 20 Old 06-30-2016, 02:53 PM
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Quote:
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Have you ck'd them with a magnet?
LG
Gary,

He's using Warrior shims, which are generally considered some of the best out there. They are definitely steel.

http://www.warriorproducts.com/catal...-spring-shims/

Matt
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post #12 of 20 Old 06-30-2016, 02:55 PM
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If it concerns you, you could always relocate the spring perches.
That is a PAIN on the front axle. A ton of grinding and a lot of room for error.

1982 Jeep CJ7 +4". 360 w/Edelbrock Performer Intake and Holley Truck Avenger carb. T18/D300 (Advance Adaptors). Hedman inframes. CV Driveshafts. Dana 44 w/Locker. American Racing Stics 5 on 33/12.50 Cooper rubber. Poison Spyder Rocker Knockers. Bushwacker flares. YJ family cage and ORF spreaders.
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post #13 of 20 Old 06-30-2016, 05:11 PM
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Quote:
Originally Posted by Matt1981CJ7 View Post
Gary,

He's using Warrior shims, which are generally considered some of the best out there. They are definitely steel.

http://www.warriorproducts.com/catal...-spring-shims/

Matt
THX Matt!
The shims I have in my '7', I had to make on my buddies mill from steel plate.
LG

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post #14 of 20 Old 06-30-2016, 10:55 PM
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Quote:
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That is a PAIN on the front axle. A ton of grinding and a lot of room for error.
I agree, but it is an option, as I stated. So is cutting and turning the knuckles, but that's probably even more of a PITA.

Matt


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post #15 of 20 Old 07-06-2016, 09:16 AM Thread Starter
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I drove my CJ on a long distance trip over the 4th and all seemed to be ok. I have dropped it off this morning to have the 6* shims installed.

I will post the results when i get them today. Lets hope my caster is close to being correct.
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