Thanks ! We really like our little TT and the RL does an excellent job towing plus it is an great daily driver. Very Pleased with the combo. FWIW I had the highly regarded '16 Tacoma prior to the RL for a TV. That is when I was looking at the Duramax to replace the Taco.
About the Colorado. The only way to tell what a particular vehicles payload capacity is unfortunately to look at the sticker attached to it.
https://auto.howstuffworks.com/auto-parts/towing/towing-capacity/vehicle%20/payload1.htm
Example: The 2WD LT will have possibly the highest rating as it has the least amount of equipment. Adding 4WD, Duramax, LTZ trim and other options all take away from the capacity of the vehicle as they add weight and the GVWR does not change . It could end up with 1,100-1,200 lbs for a fully loaded model.
On the WDH: Having no experience with the Hensley I can't offer any insight. The Equalizer WDH I use has performed great with both the Taco and the RL and would recommend. Make sure you chose the model with the loaded TW # not the empty #.
Tongue Weights: Since you looked at the 1475 you may have noticed that the published TW was 250lbs. Our loaded, camp ready with dry tanks TW is 430 lbs per a Shurline TW scale. Using the TT GVW x 12.5 % = TW calculation will get U close to a real world #.
The weight of a WDH is also added to the TW calculation. So a 550 lb TW + WDH of 50 lb = 600 lb of TW.
OldShu
'17 Lance 1475 w/160 w solar, Grp 31 Deep Cycl Trojan, Tire Traker TPMS, Prog. Ind. EMS-PT30C
'17 Ridgeline RTL AWD Equalizer 600/6000
Living the dream Thanks! How about you?