Fits: Universal 

If you've made some changes to your Duramax engine, it's always a good idea to check for the correct pushrod length. Many variables directly affect determining proper pushrod length. Pushrod length could be affected by the variables listed below.

Features:

• Block deck height

• Head deck height

• Cam base circle diameter

• Head stud boss height / rocker arm stand mounting pad

• Rockerarm design

• Lifter receiver cup height

• Valve stem height

Includes: 

• Chevy Duramax 6.6L Checking Tool Kit Chevy Duramax 6.6L 3/8 Tool
  

• 12mm cup,
  

• 12mm ball
  

• 9.0-10.0 in length

• 2 tools

•  2 cups

• 4 springs