Tow weight

You can pull right up to the max of your trucks ratings as long as you don't exceed any ratings. Your limiting factor, the rating you will probably get to firs is the payload rating, or possibly the rear axle rating. To understand all the ratings better, read this clicky

Ok, so say I wanted to buy an trailer first before purchasing a new truck. Let’s use something like this for example, which has a weight under 5100 lbs. Clicky

Based on numbers, I would think this would be possible as long as my tongue weight doesn’t overload my payload.