Diy Backseat Extender For Dogs . I built a platform for our lab. Just like in the sport trac build, the pla. Kurgo Products Backseat Bridge Backseat Extender, 60.00 (http from www.pinterest.com The front half of the platform could flip up to give us easy access to the space underneath for storage. Provides a larger, safer, more comfortable front seat ride for your dog. Justin here and i'll show you ste.