This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Low Price: $95.99
Discontinued Online

The MST MPA Axle is a complete replacement axle assembly that can be used in the front or rear. This portal axle kit includes all the parts needed to build one axle assembly. Plus, this kit is a great option for custom builders that want to take advantage of the increased pumpkin clearance that is offered by the portal axle configuration.


  • Full ball bearings
  • All metal gears
  • 14mm increase in ground clearance at the pumpkin
  • KPI and Camber for better grip
  • Use in front or rear

Hex to Hex Width:
Kingpin Angle: 15°
Caster: 0-20°
Steering Angle: 40°
Gear Ratio: 2.74
Hex Hub: 12mm

This product was added to our catalog on March 20, 2017

Saturday, Apr 27 2019 (11 months ago)
If your looking at these axles do research on how terrible they are and how easy the axles snap! I snapped 3 in 10 minutes just crawling over some cinder blocks something that even the cheapest axles should be able to handle. You would be better off buying any other portal on the market. For a $200 axle set they should have to send all the people free replacement shaft at least once not charging $50 for them to break again in literally 10-15 minutes. I don’t get how they even put this on the market, was there absolutely no testing then first?? What a terrible company but with products like this they can’t last long!!