CURT A-frame jacks are designed specifically for A-frame trailers. They can be bolted or welded directly onto the trailer frame. Though they are not able to swing up and out of the way like CURT swivel jacks, A-frame jacks are made to retract completely to ensure enough clearance for safe travel. CURT A-frame jacks range in weight capacity from 2,000 lbs. to 5,000 lbs. and are available in either top or side-wind styles.