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4x4 Block Question

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Old May 11, 2021 | 08:42 AM
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So I’ve done some searching and can’t seem to find what I’m looking for. I have a 2020 2wd Lariat. I put a 2inch RC spacer on the front and when I load my tools in the truck the truck looks like it’s squatting a bit. I would like to put the 4wd spacer in the rear but all the spacers online seem to be 1.5. Could anyone point me in the right direction?
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Old May 11, 2021 | 08:51 AM
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the rear OEM block is 1.25". You can use whatever you like however you'll find if you go over 1" you'll want to replace the rear shock as well (that's what seems to be recommended).

I tend to see them pop up on craigslist or ebay from time to time..
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Old May 11, 2021 | 10:32 AM
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alternatively you could install RAS with 4x4 shocks in the rear. That'll give you the ability to adjust your rear ride height, and it will reduce axle wrap and sway. More expensive than blocks, but its improving more than just lifting the back.
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Old May 11, 2021 | 12:31 PM
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So if I wanted to go stock 4x4 block route I would need the blocks and U-bolts right? Which would be part 6 and 8 in the diagram?
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Old May 11, 2021 | 12:43 PM
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Originally Posted by Hitech Redneck
So if I wanted to go stock 4x4 block route I would need the blocks and U-bolts right? Which would be part 6 and 8 in the diagram?
Correct, and number 9, ubolt nuts.
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Old May 11, 2021 | 01:00 PM
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Originally Posted by johnday in BFE
Correct, and number 9, ubolt nuts.
Good deal, thank you sir.
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Old May 12, 2021 | 03:57 PM
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I went through this with the blocks myself. Tried to order against a similar truck in a 4x4 and got the wrong parts a couple times. The correct block if you have a crew cab with 5.5' box is 9L3Z-5598-B. As for the Ubolts. After getting two different sets from the dealer, one was too short the other way too long with threads that didn't go up high enough, I ended up getting the U-bolts from Rough Country by measurement. https://www.roughcountry.com/u-bolt-kit-7627.html
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Old May 12, 2021 | 05:26 PM
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Originally Posted by sbpro11
I went through this with the blocks myself. Tried to order against a similar truck in a 4x4 and got the wrong parts a couple times. The correct block if you have a crew cab with 5.5' box is 9L3Z-5598-B. As for the Ubolts. After getting two different sets from the dealer, one was too short the other way too long with threads that didn't go up high enough, I ended up getting the U-bolts from Rough Country by measurement. https://www.roughcountry.com/u-bolt-kit-7627.html
Are those the exact ones that you ordered and didn’t have issues with?
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Old May 12, 2021 | 05:32 PM
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Yes, the blocks and U-bolts I referred you to is exactly what I put on my truck. Mine is a 2wd XLT crew with 5.5 box.
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Old May 13, 2021 | 01:39 AM
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There is also the option of 1" lift shackles.
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