After the meeting of wreck gar after he became a autobot like Optimus, Ratchet, Bumblebee, Bulkhead, Prowl and Sari…well he was originally from an allspark shard formed from a garbage dump boat and his alt mode is a garbage truck

soon one day while walking around Detroit being the goofball as he was, he found a garbage dump which he made into his new homestead, one day he was looking around the dump when he saw a bot that looked dim and didn’t have a spark so he had an idea so he took the shard in him and snapped a bit off and placed it in the femme/mech curious on what would happen soon there was a glow which the bot sat up quickly and looked around then onto him

Wreck Gar: Hello I am Wreck Gar…and who are you young Mech/Femme are you an autobot?