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OBS Ford F-250/350 Ubolts

Part Number: PMF-UB-R
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OBS Ford F-250/350 Ubolts
5/8" Ubolts
Your Price: $89.00

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These are a ubolt up configuration with ubolt nuts on top of the leafs!
With our in-house bender and large stock of threaded rod on hand, we can custom bend almost any length and configuration needed.  We use nothing but the industry standard grade 8 fine threaded rod, extra thick washers and tall nuts.

All kits are for the rear of the truck.  We also make front ubolts but please contact us directly to order them.

Kit includes:
  • (4) Ubolts
  • (8) Tall Nuts
  • (8) Extra Thick Washers

To Order:

Choose the diameter of ubolt you would like.  The 5/8" diameter ubolts are what come stock on this year vehicle and are sufficient for most applications.  In high HP trucks and trucks equipped with blocks taller than 7" we recommend that you upgrade to the 3/4" ubolts.  Included in the upgrade price of the 3/4" ubolts are new Adjustable Location Top Plates.

Now choose the axle tube diameter of your vehicle.

Then select what the height of the block(s) that will be used are.  This height should be measured at the middle of the block directly over top of the axle.  Always round to the taller size if you are in between sizes.

Determine what type of leaf pack you have.  A standard leaf pack will consist of a leaf configuration where the top most leaf runs full length from eyelet to eyelet.  A standard leaf pack will have a thickness of 2-3".  If your pack is thicker than this choose the "top mounted overload option".  A truck with a "top mounted overload" will have a small spacer between the main pack and the top overload which is not connect to anything at each end.

Optional items:

  • Adjustable Location Ubolt Top Plates- replaces your stock ubolt top plates to allow the axle to be moved front to rear.  You must use a set of blocks that have this ability aswell.


Special Notes:

IF YOU HAVE AN AFTERMARKET, MODIFIED OR ANYTHING CHANGED OUTSIDE THE OEM CONFIGURATION THAT WOULD AFFECT LENGTH, YOU MUST LET US KNOW!!  

IF YOU NEED OR WHAT A SPECIFIC LENGTH, JUST LEAVE A NOTE ON THE ORDER AND WE WILL ACCOMODATE TO THE NEXT NEAREST SIZE UP!

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