If they did, it is not mentioned in the US Army's official history of the campaign. They existed in July 44, but according to Zaloga were not released for deployment until August 29 and only reached mainland Europe in September. These apparently did not start reaching frontline units until October.
So, as with the 76 and the Locust they could concievably have been deployed in timeframe but were not.
Realistically, the infantry divisions should actually have them because the first jumbos were assigned to independent battalions and attached mainly to infantry. Armored divisions didn't initially see the use for an assault tank and only started asking for them in November.