For those performance enthusiasts building sophisticated “Pro Street” type vehicles with narrowed rear ends, MW offers premium quality driveline components engineered specifically for daily street use, not “after market OEM” type axles. These are designed for those who want the BEST custom-made axles money can buy. MW “Pro Street” axles overcome the problem commonly encountered when using OEM or drag-type units: flange breakage. In fact, Mark Williams warrants each axle flange against breakage for two years when used in conjunction with 45mm MW housing ends and Timken® bearings. When building high powered street machines (which often weigh more and operate on more harsh surface conditions than their race-only cousins) it is important to increase the axle bearing and flange strength. Pricing is per pair.