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Canadian Poncho Homepage -> Canadian Poncho -> Beaumont Chassis Tech Forum -> Rear upper control arm/trailing arm differences
Post Info TOPIC: Rear upper control arm/trailing arm differences
beaumontguru


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Rear upper control arm/trailing arm differences
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Did you know this about your rearend?

1964/65 beaumonts have cam washers on the upper control arms to adjust pinion angle

1967s do not.  fixed with no adjustment.

Interesting,  i never knew that

Did GM decide that pinion angle really did not change enough based on spring hieght to worry about pinion angles getting out of line?



-- Edited by beaumontguru on Thursday 24th of May 2012 08:29:30 PM

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Beaumontguru

MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH.  The other one has a longer roof.
4SPEED427


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Learned something new again today.

Did you read about it or see it on a car?

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
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beaumontguru


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Was cleaning out my diff pile today and noticed it

I have 2 64s and 2 67's next to eachother.  Took me awhile to see it

That and the coil spring perches of course.

Thats pretty much the only differences



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Beaumontguru

MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH.  The other one has a longer roof.
65 SD L79


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this is an old thread but I have a 67 frame and it has two sets of holes. I dont know if i should use top ones or bottom confuse



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beaumontguru


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I have a rolling 67 frame. Will check later today.

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Beaumontguru

MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH.  The other one has a longer roof.
beaumontguru


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I'm only seeing one set of holes at each location.

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Beaumontguru

MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH.  The other one has a longer roof.
beaumontguru


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Pics



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Beaumontguru

MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH.  The other one has a longer roof.
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65 SD L79


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IMG_4638.jpeg

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beaumontguru


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Wow. That's interesting. Mine is a 67 beaumont 4dr sedan frame. You sure yours is a chevelle beaumont one??. It looks so different.

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Beaumontguru

MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH.  The other one has a longer roof.
65 SD L79


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IMG_4639.jpeg

IMG_4640.jpeg

IMG_4640.jpeg

IMG_4641.jpeg

IMG_4642.jpeg

I thought maybe the Frame stiffeners would dictate what hole to use but as you can see, they have an oval slot in them so either hole you use the stiffeners will still work



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beaumontguru


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Ya that is most interesting. Not sure. Maybe the bbc gurus would know more.

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MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH.  The other one has a longer roof.
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