But Harrison admits he may still be tempted to freshen his side as they bid to keep the pressure on second-placed Featherstone Rovers.
Harrison said: “There may be a couple of changes. We’re playing a really good team in Dewsbury, and we need to be a little bit smarter and stronger defensively (than we were last week).”
Rams coach Glenn Morrison continues to battle against a mounting injury crisis.
Eight Dewsbury players were unavailable last week, and a further three – all props – could miss the trip to The Shay.
Morrison said: “We’re doing it tough at the moment – we finished last week’s game with only 11 blokes on the field.
“We just need to get people to take the field and work hard for each other; that’s all we can hope for. We know everyone in a Dewsbury shirt will do that.”