Curt Flex Air 5th Wheel Pin Box Review Video

Great question, Jeff! When the Rota-Flex first came out it renovated what a pin box could do and be, but at this point in time that technology is a little more dated and the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box #325-GH-8040 is the "new…

Yes. You will have to use the Demco Hijacker Autoslide Capture Plates for Trailair Rota-Flex Pin Boxes #DM6171 on your 2021 Grand Design Reflection 337RLS. As far as which Curt Flexair works for your trailer, it depends on what pinbox you currently…

I sure can! The Lippert 1716 Pin Box #LC1324791 you were looking at measures 36.4" long and 14" tall as shown in the included diagram provided by Lippert.

While I have not heard of failures or reasons why the lower jaw would need to be replaced, a Trailair Air Ride such as #LC158778 is going to be more prone to chucking than the upgraded Trailair Flex Air such as #LC369535. The reason for that is the…

The Curt Flex Air 5th Wheel Pin Box, #LC369535 is designed as a replacement to the Lippert 1621 pin box. Any increase in height you may receive will be negligible. While replacing a Lippert 1621 with an air ride pin box is great improvement for ride…

The correct MORryde Cushioned 5th Wheel Pin Box for a Grand Design Reflections 337RLS is part #MR84VR. This pin box will do a wonderful job of helping smooth the ride due to the internal cushioning which reduces road shock.

The safe GVWR rating is 80-85% of total weight capacity to allow for any additional weight added to the trailer. So for a 16k pin box you'd be looking at 12,800lbs - 13,600lbs as a safe weight. I looked up your current pin box with the LCI Number…

Thank you for the photos! I reached out to my contact at Lippert and they said your 5th wheel trailer is equipped with a model 1621 pin box so that's what you want with a Reese 5th Airborne: - 20K Reese 5th Airborne Premium Fifth Wheel Air Ride…

Because it's lighter, less expensive, has fewer moving parts and is mechanically less complicated I'd recommend going with the Gen-Y #325-GH-8040 shock absorbing pin box versus a Trailair Flex Air like part #LC328492. The Trailair features a…

So the number GH-8045AL you are seeing is the Gen-Y part number for our #GY58GR. So everything is okay with that. As far as the height and the mounting holes it can vary so much from camper and vehicle that I always say it is best to just ensure you…

Pin box bolt torque is based on the size of the bolts. 1/2 inch Bolts GR5 90 ft-lbs 5/8 inch Bolts GR5 150 ft-lbs 3/4 inch Bolts GR5 275 ft-lbs The specific torque specs for installing the Trailair pin box part #LC158778 that you referenced are…

Pin box bolt torque is based on the size of the bolts. 1/2 inch Bolts GR5 90 ft-lbs 5/8 inch Bolts GR5 150 ft-lbs 3/4 inch Bolts GR5 275 ft-lbs