BAK Industries RAILS-448329 BAKFlip MX4 Rail Set Fits 15-20 F-150Tonneau Cover Rail BAKFlip MX4 Rail Set BAKFlip MX4 Rail Set; SPECIFICATIONS: WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm www. P65Warnings. ca. gov. FEATURES: BAKFlip MX4 Rail Set The new BAK Revolver X4s is the third generation of America's #1 selling premium hard rolling cover, now with exciting new features. The Revolver X4s is a bed cover engineered for real world durability. With NEW

Easy Drop In Design

Measuring Tools

- QAA WP24136

Simply swap

Estimated Horsepower Gain 11 HP @ 3300 RPM

UPC: 691821309245

Rear Window Molding

UPC: 848399083286

Front \ Rear Bump Stop Spacers bolt in between the upper frame and OEM bump stops

Replacement for any 5202 bulb size

3L applications

For Dana 30/44 Differentials