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Old 01-22-2021, 10:27 AM   #1
derotoreut
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Need help with front leaf spring plate orientation

I'm swapping in a mid 80's Dana-44 front axle in place of my drum brake axle. The newer axle has a 3" tube versus the 2.75" tube on my original axle. Because of this I needed different U-bolt spring plates to accommodate 3" U-bolts. The spring plates I have are OEM versions that have the threaded holes for a sway bar.

I'm trying to determine the orientation of the driver side plate. The passenger side is pretty much self-explanatory due to the larger diameter U-bolt on that side. What I need to know is on the driver side, does the threaded hole for the sway bar face the outside or inside? I would think it would face the outside (picture #2) to match the passenger side. If that's the case, it orients the raised blocks on top of the plates in different positions. Thanks for your help.

Do the leaf spring plates go like this?
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Or do they go like this?
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Old 01-22-2021, 10:59 AM   #2
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Re: Need help with front leaf spring plate orientation

This is a late 80’s K30. You can see the driver side sway bar bolt faces the engine and the passenger side sway bar bolt faces the passenger tire.

My 57 is on a late 80’s blazer frame and it’s the same orientation.
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Old 01-22-2021, 11:13 AM   #3
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Re: Need help with front leaf spring plate orientation

Quote:
Originally Posted by 57taskforce View Post
This is a late 80s K30. You can see the driver side sway bar bolt faces the engine and the passenger side sway bar bolt faces the passenger tire.

My 57 is on a late 80s blazer frame and its the same orientation.
Interesting. Thanks for chiming in. I'll see if anyone else comments. Thanks again.
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Old 01-22-2021, 11:50 AM   #4
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Re: Need help with front leaf spring plate orientation

Yep no problem. I went out and snapped one of my 57 too.
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Old 01-22-2021, 09:34 PM   #5
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Re: Need help with front leaf spring plate orientation

same way on my truck.
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Old 01-23-2021, 04:58 AM   #6
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Re: Need help with front leaf spring plate orientation

91 burb is the same also...I assume its on the inside on drivers side to clear the steering/pitman arm
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Old 01-23-2021, 03:29 PM   #7
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Re: Need help with front leaf spring plate orientation

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Originally Posted by mongocanfly View Post
91 burb is the same also...i assume its on the inside on drivers side to clear the steering/pitman arm
bingo!
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Old 01-24-2021, 09:26 PM   #8
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Re: Need help with front leaf spring plate orientation

Thanks guys. Greatly appreciated.
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Old 01-25-2021, 09:31 PM   #9
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Re: Need help with front leaf spring plate orientation

So next question is can I install a sway bar on my 70 K10? Originally I was not planning on it, but the leaf spring plates are set up for one. If so, what else would I need to do so? What year sway bar do I look for?
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Old 01-26-2021, 01:11 AM   #10
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Re: Need help with front leaf spring plate orientation

I believe In order to run the GM bar you’ve got to swap to a square body engine crossmember setup for the sway bar.
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Old 01-26-2021, 09:38 PM   #11
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Re: Need help with front leaf spring plate orientation

Quote:
Originally Posted by 57taskforce View Post
I believe In order to run the GM bar youve got to swap to a square body engine crossmember setup for the sway bar.
Ah, OK. Well that's not going to happen. I swapped my front cross member to the Tilden Motorsports LS one for my swap.
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Old 01-27-2021, 12:19 PM   #12
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Re: Need help with front leaf spring plate orientation

I'm sure with a little ingenuity something can be fabricated to work. I'd lay a square body bar in there loosely bolted to the plates and hold it up to the frame with a bungee cord and see what can be done
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