4" OEM Rear Spring Blocks

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Jan 16, 2014 | 08:26 AM

BobbyB

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Joined: May 2005

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From: Ethridge, TN

4" OEM Rear Spring Blocks

I have read a lot of posts about adding 4" rear spring blocks for lifting. I have not been able to find a Ford part number. Would anyone happen to have them that will fit a 2004 F250 Crew Cab Short Bed?

Thanks!

Jan 16, 2014 | 09:24 AM

Unrealo4

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Joined: Nov 2010

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From: Eagle Mountian, Utah

The f350's had blocks that were 4.25 inches tall. The f250's had blocks that were 2.75 inches tall. I dont have part numbers but your looking for f350 blocks.
Btw other then the tag that is the only difference between a f350 and f250 well at least the srw versions.

Jan 16, 2014 | 10:01 AM

texastech_diesel

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Joined: Jun 2007

Posts: 9,337

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From: Breckenridge, TX

If you have one of the following:
Crew Cab Short Bed (156" Wheelbase)
Super Cab Long Bed (158" Wheelbase)
Crew Cab Long Bed (172" Wheelbase)

Then use these part #s:
Blocks: F81Z5598 DA Qty: 2

If you have one of the following:
Super Cab Short Bed (142" Wheelbase)
Regular Cab Long Bed (137" Wheelbase)

Then use these part #s:
Left Tapered Block: F81Z5598FA Qty: 1
Right Tapered Block: F81Z5598GA Qty: 1

If F-250 is equipped with factory auxillary/overload springs use u-bolt part number 5C3Z-5705-AA. If F-250 does not have factory auxillary/overload springs use u-bolt part number N811667-S436. If you want replacement nuts, it's part number N620485S441 Qty: 8.