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8' Truck Bed Floor Support Crossmember Kit for 99-17 Ford Super Duty

Part Number: 90-99-85

Price: $421.95

In Stock, Ready to Ship!

Truck bed floor support crossmember kit for 1999-2017 Ford F250, F350 and F450 Super Duty 8' pickup beds. This is now a 5 piece crossmember kit. It does include the crossmember for the front. It does not include the very rear of the bed.


  • 2008-2016 Ford F450 Super Duty 8' bed length, Styleside
  • 1999-2017 Ford F350 Super Duty 8' bed length, Styleside
  • 1999-2017 Ford F250 Super Duty 8' bed length, Styleside


  • Long: 60-1/4" x 3" x 4-1/4" Wide - includes flanges
  • Medium: 59"L x 1-1/4" x 3-1/2" Wide - includes flanges
  • Short: 46"L x 2" x 4-1/4" Wide - includes flanges

For 6-1/2' beds use part number 909984

A time-saving and cost efficient repair solution for rusted original bed supports. Unlike the original equipment, these direct-replacement Truck Bed Floor Supports will save time and money by replacing only the failed original supports, instead of the entire truck bed assembly. Includes all necessary components needed for a complete installation.

  • Direct-replacement repair solution for popular 1999-2017 Ford F250, F350 and F450 Super Duty trucks with a 8' bed
  • Includes all necessary installation components for a complete repair
  • Easy to install and requires no special tools for installation
  • Quality-tested to protect against corrosion and to meet product standards

Product Specifications

Color/Finish:Weldable Primer
Item Grade:Standard Replacement
Package Contents:5 Rails; 1 Bed Mounting Hardware Kit; 2 Body Bolts; 2 Clip Nuts



Rest assured, when you buy a rust repair panel from Mill Supply, you are going to receive the best there is in the industry. Our purchasers search for the cleanest lines, smoothest curves and best stamped form when they purchase panels like; rockers, rear quarters, cab corners, door skins and other restoration parts. We work hard at keeping our prices down so you're getting the best value for your dollar. Auto body restoration has been our specialty since our founding in 1944 when we started by selling paint and other body shop supplies to local businesses in the Cleveland area. Since then, we have expanded nationwide, and with the internet, often sell overseas. Whether you're repairing a classic car, pickup truck, or even your daily driver, we have the restoration panels you need. If you have any question or would like help with ordering please contact us via email or give us a call at 800-888-5072 between 8:00 a.m. - 5:00 p.m. E.S.T. and one of our experienced representatives will be happy to help you.

OEM Numbers:
  • BC3Z9911215A
  • YC3Z9911213BA

Years this part fits: 99-17

Estimated Shipping Dimensions: 62" x 12" x 6"

Weight: 66.1 lbs

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Mill Supply, Inc. 19801 Miles Rd. Cleveland, OH 44128