Carli Pinion Shim Kit, 2 Degree, for 2005+ Ford F250/350 4X4

Ideal pinion angle is 1°-3° in stock applications; this is the guideline Carli have always used. Carli have had a few customers report a driveline vibration around 70mph when under power from the rear driveline. All have provided specs within the 1°-3° range. Carli brought an affected vehicle into the shop and installed these 2° pinion shims which alleviated the issue.

The end pinion measurement on the two tested vehicles was 4° and 5°; both were perfectly smooth under power at all speeds. This caused us to toss the accepted 1°-3° spec out the window accepting the higher figure for lifted applications; after all, you can’t argue with results!

Features:

• 2° Pinion Shim Kit
• Includes new Center Pin
• Fitment: 2005-23 Ford F250/350 4×4