Using Tag Manager/Scripts to track iframe google form conversions and userdata (ie GCLID/FbClick ID) in analytics, adwords and facebook

Due to embedded iframe google forms used as conversion tool and the google form not providing any url redirection methodology on conversion, i am having trouble tracking conversion and sending user ID information outside iframe into analytics and facebook to track success of ad campaigns. Need someone familiar with google tags/scripts to track google form conversion and send information via API to analytics/FB with user ID/click ID information that seems lost when in iframe