Modular 9" Pro 4 Link Floater Housing (33-42" width)

Mark Williams modular housings are the pinnacle of rear end construction. Featuring an incredibly strong A206 center housing which adds strength, is lightweight, and is precision machined. These housings fit 9" up to 10" center sections as well as up to a 4" bore third member case without clearancing. 

Modular rearends allow you to keep precision straightness by way of machined parts which avoids warping or bending over time. Additionally, overall length can change to accomodate different tire and wheel combinations by simply changing the end spacers and axles which allows your ride to adapt with different series of racing or evolution of racing without buying a whole new rearend. This means you can switch between big tire and small tire from one day or weekend to the next.

Specs: 

• Multiple 4-link centers available, see options
  
• 1/4" thick chromoly steel 4-link mounting brackets
• 7/8" 7075 aluminum bracket spacers
• Chromoly steel tubular tie bar
• 34" wheel to wheel dimension includes 2.812" axle standout and .25" brake hat thickness for each side
• Tubular tie bar
• Floater Housing ends
• Housing will accept MW 4.00" bore thirdmembers without modifications.
• Includes studs, nuts, washers, brackets, end bells, spindles, and fabricated lower tubular tie bar to secure the 4-link brackets to the bottom of the housing. 
• Housing has provisions for either upper or lower wishbone attachment along with shock and wheelie bar mounts.
• Holes in the 4-link brackets accommodate rod ends with 1/2" cross holes.

Included: 

• Modular 9-10" Center Housing w/ hardware
• 4 Link Bracketry and Tie Bars w/ 4link spacers
• Thirdmember studs
• 7075 end bells
• End bell studs
• Short Floater Spindles
• Third Member Gasket
• Outer spacers for rearends that require for overall width
• Inner 4 link spacers for housings w/ over 17.125" 4 link center

To Complete:

• Add Floater Brake Kit w/ hubs (no spindles)
• Axles 

Features

• Cast in the USA
• Machined in the USA
• A206 High Strength, Heat Treated Casting
• Fits 9" through 10" gear sets
  
• Full line of modular bracketry
• Modular End bells and spacers for adjusting width and spacing 
• Optional spur gear for gear and bearing oiling 

Modular Advantages

• Precision Machined to avoid warping caused by welding
• Removes chance of cracking welds
• Able to be changed to accomodate different wheel/tire widths and changes of bracketry
• Optimized bracing and strengthening designs built in
• Saves fabrication time