4000Kg Tandem Trailer Caravan Suspension Kit. 12" Electric Brakes. 50mm Solid Axles. Rocker Roller Springs P224 7MM (LM67048)2X OUTER BEARINGS ID:19MM 7MM (LM67048)2X OUTER BEARINGS ID:19MM (LM11949)2X OUTER BEARING CUPS (already inserted)2X INNER BEARING CUPS (already inserted)2X LM REAR SEALS2X DUST CAPSHUBS COME WITH CUPS INSERTED charging or (needs) recharge CUSTOM AXLE LENGTH UP TO 2500MM TIP TO TIP +$100 PER KITCustom Axle lengths will need to be manufactured which will take approx 5 extra business days for dispatch on top of the current dispatch times Shot peening is often called for in aircraft repairs to relieve tensile stresses built up in the grinding process and replace them with beneficial compressive stresses