Lightest I've seen so far are the iGo G27RK-5 and R27RL-5 both of which have GVWRs of under 8k#. See www.GoiGoRV.com
Perhaps someone can educate me but isn't the tongue weight limit a function of the hitch's capability with tow behinds but payload capability is what determines how much weight you could handle with a 5th wheel?
For instance with my truck, my towing limit (determined by hitch) is 11.3k lbs but the payload on the same truck is 2,450 lbs. If I were to find a suitable unit that fits the weight limits of the payload, GVWR, GCVWR, GAWR, etc., I would think I would be ok. Am I wrong?
Mike, Sue, Sissy and Little Man
2015 Ford F350 Lariat FX4 6.7 CC DRW
2015 Eagle Premier 351RSTS