upper control arm bushings different size ? - Chevelle Tech
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post #1 of 9 (permalink) Old Oct 25th, 18, 6:58 PM Thread Starter
rob
 
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upper control arm bushings different size ?

rebuilding dads 68 ss convertible, and am in the process of changing the front bushings. pressed out the uppers, and when i went to install the new ones, the rear on the drivers side upper is loose in the hole. measuring the new ones OD- i get 1.279. the original rear measures 1.295 OD. is this normal? i can't find any info on an oversize bushing. i also haven't taken the other side apart yet. if the hole has enlarged? can it be pressed back down?
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post #2 of 9 (permalink) Old Oct 25th, 18, 11:11 PM
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Tom
 
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Re: upper control arm bushings different size ?

Never seen that. I’m guessing you need a new arm. I wish I wouldn’t have thrown all four off of my ‘68 in the trash last week or I’d send them your way. I bet you can find some take-offs here that others have collecting dust.
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post #3 of 9 (permalink) Old Oct 26th, 18, 7:51 AM
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Rick
 
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Re: upper control arm bushings different size ?

Moog has their "Problem Solver" line of oversize bushing and suspension products. See if they have something that might work.

Rick

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post #4 of 9 (permalink) Old Oct 26th, 18, 9:10 AM Thread Starter
rob
 
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will look at the moog website, see what i can find. thx. was thinking about new control arms, but i measured the bushing i took out, so they had to be available somewhere-sometime.
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post #5 of 9 (permalink) Old Oct 26th, 18, 10:18 AM
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Bob
 
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Re: upper control arm bushings different size ?

First:
WHY is it oversize? What caused this condition? Were the wrong bushings installed at sometime? Are the bushing holes worn or pushed out of shape? Any small fractures? Glen Leaver in N.Y. is very good at rebuilding upper and lower control arms. He did mine. Glen can answer a lot of questions.
I would make dang sure the control arms are in excellent condition before you use them. Glen Leaver-585-704-3345
Bob


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post #6 of 9 (permalink) Old Oct 26th, 18, 3:01 PM
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Harold
 
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Re: upper control arm bushings different size ?

if I remember correctly, my 66 could have had 2 different size bushings , but in the lower only ??. Maybe your control arms were changed, if they will interchange.
Maybe Moog has a "buyers guide" online . That will have specs

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post #7 of 9 (permalink) Old Oct 26th, 18, 4:58 PM
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Tom
 
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Re: upper control arm bushings different size ?

Quote:
Originally Posted by driveshaft-texas View Post
if I remember correctly, my 66 could have had 2 different size bushings , but in the lower only ??. Maybe your control arms were changed, if they will interchange.
Maybe Moog has a "buyers guide" online . That will have specs
I think you’re right about the lowers, but if I remember correctly, the difference is pretty huge. Like a half inch.

OP: I feel your pain. I started the same “new bushings” project on my ‘68 about a month ago. That turned into $2k in parts before I was finished. I do see that several vendors sell new upper control arms with bushings and ball joints already installed for about $150.00. Hopefully you can find a bushing to fit, but just in case....
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post #8 of 9 (permalink) Old Oct 26th, 18, 6:13 PM
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Ben
 
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Re: upper control arm bushings different size ?

both front Upper bushings should be the same size.

I tossed like 3 pairs of stock upper control arms earlier this summer when I moved... I'm sure you can find a single one for super cheap from someone... I tossed them because if i ever need new ones again I'm getting aftermarket with better geometry... but thats just me.

Ben R.

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post #9 of 9 (permalink) Old Oct 28th, 18, 12:39 AM Thread Starter
rob
 
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after some more investigating, and talking with moog, the control arm had been beaten out when original bushing failed and was not changed right away. still unable to conclude what the bushing i took out was originally for, but it was about 0.015” bigger OD, and seemed to work well. i was able to hammer the hole down enough to hold new bushing, and tack welded bushing in.
a new arm is on the list of needs. thx.
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