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2 inch blocks in rear

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Old Jun 11, 1999 | 08:11 PM
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2 inch blocks in rear

my new truck f350 4x4 crew daully came thur with the 2 inch blocks in the rear i want the 4 inch
blocks. with the 2 inch blocks i had 500 pounds in the truck the back sat a little low does any one think ford will replace with 4 inch blocks....
THANKS
 
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Old Jun 12, 1999 | 07:53 PM
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2 inch blocks in rear

Standard for 350SD 4x4 should be 4" blocks ,something not right ckeck with dealer or dist. rep
 
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Old Jun 13, 1999 | 08:14 AM
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2 inch blocks in rear

>Standard for 350SD 4x4 should be
>4" blocks ,something not right ckeck
>with dealer or dist. rep

dealer told me all 4x4 daullys coming off the line have 2 inch blocks in the rear now.
butt i want them to change them out.


 
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Old Jun 13, 1999 | 10:02 PM
  #4  
Don McConaghy
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2 inch blocks in rear

 
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Old Sep 22, 2006 | 10:41 PM
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suggestion

www.suspensionconnection.com
 
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Old Sep 22, 2006 | 11:08 PM
  #6  
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EnviroCon
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From: Milky Way Galaxy
Originally Posted by gene_1
>Standard for 350SD 4x4 should be
>4" blocks ,something not right ckeck
>with dealer or dist. rep

dealer told me all 4x4 daullys coming off the line have 2 inch blocks in the rear now.
butt i want them to change them out.
All DRW's have come with 2" blocks in the rear since at least '99. The F-350's get the 4" block. If all you're going to do is switch-out the rear blocks, I would recommend going with either the 4" factory blocks or Donahoe Racing, since both of those come standard with the bumpstop arm, while most others don't.
 
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Old Sep 23, 2006 | 06:07 AM
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Am sure you can find someone to trade with you. If you do use new u-bolts.
 
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Old Sep 24, 2006 | 09:30 AM
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Originally Posted by busdriver47
Am sure you can find someone to trade with you. If you do use new u-bolts.
I have also heard to use new u-bolts when changing out blocks. Other than different u-bolt lengths for different block sizes, is there a reason to change these? Is there a mechanical reason like stretching or thread deformation?

Reason I ask is that I want to swap out the 4" F-350 blocks for 2" blocks to get the rear a little lower and understand the stock u-bolts have enough threads to still work with shorter blocks.
 
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Old Sep 24, 2006 | 02:52 PM
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You can use the stock U bolts for the 4" going to the 2" but not the other way around. The ones for the 2" are just a little short for the 4" blocks.
 
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Old Sep 24, 2006 | 07:04 PM
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Originally Posted by YDM
I have also heard to use new u-bolts when changing out blocks. Other than different u-bolt lengths for different block sizes, is there a reason to change these? Is there a mechanical reason like stretching or thread deformation?

Reason I ask is that I want to swap out the 4" F-350 blocks for 2" blocks to get the rear a little lower and understand the stock u-bolts have enough threads to still work with shorter blocks.
I'd still get new U bolts and nuts - your old ones would have had a bit of
stretch, and the nuts may see some thread deforamation. The long U bolts
may not have enough threads by the looks of it. Here's my before/after
pics (I took out the 4" block completely, with no 2" at all):





Needed all the drop for 5th wheel deck clearance.
I then added air bags to get some variable lift (see my gallery for additional pics).
 
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Old Sep 25, 2006 | 02:15 PM
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From: Gardnerville, NV
black350,

I couldn't tell from your pics if your truck was level after removing the 4" blocks. Does it sit level? I tow a small TT (4K) so rear supsension squatting is only about an inch. Thanks for the pics BTW.
 
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Old Sep 25, 2006 | 06:20 PM
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YDM.

yes it sits pretty level without airbags inflated, although it "looks" low
in the back - so used to seeing that rear rake that when it's not there
it does look different. I use the airbags to get that rake back when not
pulling the 5th wheel :-) and add just a little bit (10 lbs) with the 5th
wheel on to help with the ride.

I think in my gallery, I have a side view composite pic of stock and
dropped for comparison.
 
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