Base Kit

Rear Block Kit

6" Rear Block Kit

This Box Kit includes the following products:

  • Driver & Passenger Side 5" Tapered Block
  • 4 5/8 x 3-1/8 x 19 Semi-Round U-Bolts
  • 1" x 3" Bolt-on Block
  • Bag Kit
  • 7/16" x 6" Center Pin
  • 5/8" Washers
  • 5/8" High Nuts
  • E-Brake Relocation Bracket
  • E-Brake Clamp Bracket
  • Bolt Pack -E-Brake Brackets

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Transfer Case Indexing Kit

SD Transfer-Case Indexing Kit- DSL

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Rear Lift Option


  • Some F250/350 factory options increase the main leaf pack count from 2 to 3 leafs (this is for top overload options only). Be sure to verify which factory leaf spring configuration your vehicle has and choose the appropriate option below.
  • If you have a factory 3-Leaf Main, you can skip this section.

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