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[C1] Lowering rear end

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Old Apr 29, 2019 | 11:22 AM
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Default Lowering rear end

i have a 62 and want to lower/level the rear end. I'll add pictures later but the rear end sits up a few inches higher than the front and to me it looks ridiculous. My car is completely stock, its not tubbed and does not have oversize rear wheels, I'd like to keep it that way but level the car out. Any good ways to do this?
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Old Apr 29, 2019 | 11:32 AM
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Originally Posted by K9_Mechanic
i have a 62 and want to lower/level the rear end. I'll add pictures later but the rear end sits up a few inches higher than the front and to me it looks ridiculous. My car is completely stock, its not tubbed and does not have oversize rear wheels, I'd like to keep it that way but level the car out. Any good ways to do this?
Pictures of the stance or measurements from under the wheel well to the floor front and rear would also be helpful. It may be that the front is sagging. Also you might look and see if it has shackles that are longer than stock.
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Old Apr 29, 2019 | 11:51 AM
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Ok perfect, once i'm home after work I'll get some measurements and check the shackles. Thanks!
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Old Apr 29, 2019 | 02:02 PM
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Pics please. Front is likely sagged. I would fix that, personally, as I don't care for slammed cars. If you want to lower the rear, you can either remove a leaf from each spring or simply use lowering blocks. Easy to do.
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Old Apr 29, 2019 | 06:46 PM
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The rear spring eye should be above the shackle mount on the cross member in stock configuration. Longer shackles would lower the rear. Perhaps someone installed the springs with shackles down instead of up which would put the spring below the cross member and make it sit very high,
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Old Apr 29, 2019 | 06:56 PM
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Originally Posted by K2
The rear spring eye should be above the shackle mount on the cross member in stock configuration. Longer shackles would lower the rear. Perhaps someone installed the springs with shackles down instead of up which would put the spring below the cross member and make it sit very high,


Shackles should be above the frame shackle pivot mount, not below.

Doug
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Old Apr 29, 2019 | 07:45 PM
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Assuming all is correct, you can lower the rear using lowering blocks mounted between the axel and springs. You will also need longer u-bolts.


Here is a shot of my ‘61 and you can barely see the 1” lowering blocks.
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Old Apr 30, 2019 | 01:44 AM
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What is the purpose of the cooling fan?
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Old Apr 30, 2019 | 07:02 AM
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Originally Posted by vettsplit 63
What is the purpose of the cooling fan?
It is an automatic (700R4) and that is the transmission cooler.
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Old Apr 30, 2019 | 07:16 AM
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Originally Posted by Factoid
It is an automatic (700R4) and that is the transmission cooler.
Oh, OK, I wasn't thinking. Cool!
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Old Apr 30, 2019 | 07:59 AM
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Here are the correct dimensions for body height.

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Old Apr 30, 2019 | 08:59 AM
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Would these heights be the same for my '57? I don't recall seeing this info in any of the docs or manuals I have.
Thanks,
Nick
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Old Apr 30, 2019 | 09:27 AM
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Originally Posted by vettsplit 63
Pictures of the stance or measurements from under the wheel well to the floor front and rear would also be helpful. It may be that the front is sagging. Also you might look and see if it has shackles that are longer than stock.
I couldnt get a good pic because the car is up on the lift and it was raining so I didnt want to pull it out into the rain to get a side profile pic, but the measurements were 33.5" for the front and 35.25" in the back.
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Old Apr 30, 2019 | 09:42 AM
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The car is definitely not going to look slammed, the front looks like its at a decent height. I found a pic on my phone from my wife driving it. You can clearly see the rear is much higher than the front.
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Old Apr 30, 2019 | 10:14 AM
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Lowering rear end.

I think that happens automatically as we age.
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Old Apr 30, 2019 | 10:54 AM
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Originally Posted by Nick Bernier
Would these heights be the same for my '57? I don't recall seeing this info in any of the docs or manuals I have.
Thanks, Nick
The diagram was taken from the 1953-1962 Corvette Servicing Guide, also known as the ST-12, so I am assuming that the height measurements apply to all C1’s.

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Old Apr 30, 2019 | 01:15 PM
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Originally Posted by cbernhardt
The diagram was taken from the 1953-1962 Corvette Servicing Guide, also known as the ST-12, so I am assuming that the height measurements apply to all C1’s.
Duhhhh!! It's only on the first page of the first section. Can't believe I missed it.
Thanks,
Nick
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Old Apr 30, 2019 | 02:15 PM
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I would lower the rear end by de-arching the leaf springs. I'm not a fan of lowering blocks or using longer shackles.
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Old Apr 30, 2019 | 03:44 PM
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De arching the leaf springs? I'll look it up on the googles but what does that mean? Thanks!
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Old Apr 30, 2019 | 03:50 PM
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Originally Posted by K9_Mechanic
De arching the leaf springs? I'll look it up on the googles but what does that mean? Thanks!

That means taking the springs to a spring shop and let them take some of arch out of them. That'll lower the rear end.
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