the rear drag wheel mount 10 to the angular support bracket 12 will have all the same elements of the first preferred embodiment with the addition of an angular wedge block 60 shown in fig5 the angular wedge block 60 would be inserted in the compressible engagement of the clevis 18 to the angular support bracket 12 by placing it between the radius 54 of the angular skid bracket 12 at the top surface 13 of the angular support bracket 12 and the distal end of the central bolt 48 when the central bolt 48 is rotated to impart compression force against the support pin 32 with the angular bracket 12 in between the exterior surface of angular wedge block 60 which is best dimensioned in the same shape as the angular support bracket 12 will engage upon top surface 13 of the angular bracket 12 reinforcing the angular bracket 12 along the entire area of contact and providing more surface area of contact for the compression engagement of the clevis 18 to the angular support bracket 12 additional compression force may be provided by optional setscrews 56 and 58 use of the angular wedge block 60 having an exterior surface adapted to engage the top surface 13 of the angular bracket 12 provides additional strength to the angular bracket 12 as well as the above noted additional contact surface area for a better compressible engagement a.