Upper control arm eccentric

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Jan 29, 2020 | 08:55 PM

#16

steve(ill)

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yes, a two jaw puller can be used in a lot of areas.

Jan 30, 2020 | 06:05 PM

#17

Adrien Massoni

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So these are the upper control arm bolts that I took off today and I wanted to know if anyone has ever seen this orientation before

https://i.imgur.com/rQiiTY0.jpg
https://i.imgur.com/t9ELVGE.jpg

Jan 30, 2020 | 09:16 PM

#18

steve(ill)

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the nut and bolt look familiar... I have never seen a truck with that rectangular plate on it before..... probably don't hurt, but I don't know what good it is doing.

Jul 29, 2020 | 10:24 PM

#19

paker

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I am not resurrecting an old thread. I actually have a question about a post.

Quote:

Originally Posted by Spotty

Marks look good. You will see a nice dirt mark too when removed. I put my jacks further back on the frame, can't really tell what you are on. My idler arm bolted to frame with two big bolts. I remember trying to get the second bolt started and stuck my finger in the hole and the thing sprang around and I thought it took the end of my finger off. Stupid move and got lucky.

Removing the two nuts of the idler arm seem to be risk free. Am I overlooking something? I don't understand "the thing sprang around" and whacked your finger. All grease rubber boots are damaged on my 97, including the idler arm. I don't want to lose a finger while replacing the parts. Thank you.

Recently, I got my wheel alignment done. These are the results:
Camber: -0.4 & -0.7 (Limits are -1.0 and 0.4)
Caster: 7.4 & 7.3 (Limits are 5.4 and 7.4)
Toe: 0.00 & 0.03

My 97 upper control arm has a square nut piece that limits the bolt sliding in and out of the slot (just like the OP). Would you recommend eccentric cam for caster adjustment? AFAIK caster doesn't affect tire wear. Is it a big deal if caster stays at max or exceeds max? Thank you.

Jul 30, 2020 | 06:30 AM

#20

Spotty

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From: Minnesota

I was dumb enough to stick my finger in the 2nd hole to get it aligned and it pivoted around and got the end of my finger. LOL.....just don't use your finger as a drift pin and you will be fine.

Jul 31, 2020 | 02:47 AM

#21

paker

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Thank you for the explanation.

Jul 31, 2020 | 05:39 AM

#22

96f150

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From: In my House

Like Stev and others have mentioned, Just mark the old arms where they sit now. I did my uppers about a month ago and just marked where the old ones were in the slot and just put the new ones in the same way....All good no issues

Jul 31, 2020 | 10:48 PM

#23

steve(ill)

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ould you recommend eccentric cam for caster adjustment? AFAIK caster doesn't affect tire wear. Is it a big deal if caster stays at max or exceeds max? Thank you

CASTER is the slope of the tire front to rear ( angle of the upper and lower ball joints relative to vertical).... that reading will not have much effect on you.. It helps the truck run in a straight line if you let go of the steering wheel.... What you are really concerned with is CAMBER and TOE IN-OUT ....... that effects your tire wear. If you are in "SPEC" all you can do is monitor tire wear after 10- 20,000 miles and see if any small adjustment might help.