Best Weight Distribution Recommendation Towing 2019 Grand Design 315RLTS TT

Question:

Good morning, Please give me your recommendation for a WD assembly. 2015 2500HD CC Duramax towing a Grand Design 315RLTS. TT Factory hitch weight: 1065# Truck cargo after axle: 150# WD Hitch assembly: 100# 2 30# propane : 108# battery: 45# Estimated total on the light side is: 1,468#. The Duramax hitch receiver sticker states MAX TW at 1,500#...so Ill be at the Maximum. My concern is going to light on the bars too Flexible or too heavy not flexible enough. Based on the numbers i feel that I should go with 1500# bars with a Class 5 shank. Another concern is the length of hole distance for the shank going into the receiver. Ive always understood that shorter is better...putting the hitch ball as close to the Tow Vehicle as possible. So, please give me your thoughts on the best shank and an easy to install WD assembly for this combo. I like the idea of the Reese Straightline, but it seems a bit confusing for camping hook up and installation. However, Im not sold on the Equalizer style of friction bars either. But for either choice, I prefer one that works well in tight turn radius and can be used while backing up without bar removal. Thank you.

asked by: Steve C

Expert Reply:

The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use.

Since your estimate is very near 1,500 I'd recommend going with 1,700 lb max range like the Reese Strait Line kit part # RP66075 which has a range of 1,000 lb to 1,700 lb and features the best sway control that works to fight sway before it starts. This system has the same turning range as any of the other systems. Basically you just can't jacknife the trailer when backing up and you'll be fine.

You'll need a heavy duty shank too like the part # RP54976 which has the same 1,700 max tongue weight capacity and also fits a 2-1/2 inch hitch like your truck has. The shank is a bit longer at 17-1/2 inches but it has the needed capacity so it will work great still.

Then for a hitch ball you'd want the 20k rated Draw Tite ball part # 63840 and you'd be set.

expert reply by: Jameson C