Store › Springfield 5-Legged Deck Base Caster Replacement - 75mm w/Brake Urethane [2100340] Springfield 5-Legged Deck Base Caster Replacement - 75mm w/Brake Urethane [2100340] $55.99 5-Legged Deck Base Caster Replacement - 75mm with Brake Urethane5-pack caster replacements for a 5-legged deck base. Add To Cart Added! 5-Legged Deck Base Caster Replacement - 75mm with Brake Urethane5-pack caster replacements for a 5-legged deck base.