I'm swapping out the bench seat with high buckets from the same era in my '70 Sportsback. The seat was shipped taking apart to save on space while in shipping to me. I can't figure how to get them reassembled now. I can easy get one bracket over the dial, but have no luck on the other side. I have tried to place the back portion in every position with still no luck. I would appreciate anyhelpful pointers.