Recommended 16" Wheels with 6 on 5-1/2 Bolt Pattern for Load Range G Tires

Question

Question:

Hi, I have a 5th wheel toy hauler with 16 wheels with 6 on 5.5 bolt pattern. I previously had 235/80R16 load raange E tires. I switched to load range G. Now, the wheel is separating - the inside of the wheel is separating from the outside! Is there a 6 on 5.5 wheel that will work with Load Range G tires? Or do I need to go 8 lug, which means new axles? Ugh. Thanks!

asked by: David S

1

Helpful Expert Reply:

If you were to go with 16" wheels with a 6 on 5-1/2" bolt pattern, the highest capacity wheel we have available would be something like the Aluminum HWT Series S5 Trailer Wheel - 16" x 6-1/2" Rim - 6 on 5-1/2 - Black
Item # AM22658HWTB; this wheel has a 3580-lbs capacity, so it's not going to fully maximize the roughly 4000-lbs capacity of a Load Range G wheel like the Provider ST235/80R16 Radial Trailer Tire - Load Range G # PRG80235.

However, going up to a wheel with an 8 on 6-1/2" bolt pattern would have a higher capacity; a good example is the Aluminum Viking Series Valhalla Trailer Wheel - 16" x 6-1/2" - 8 on 6-1/2 - Silver Spoke # AX02665865HDBMMFL, which has a 4450-lbs capacity. The good news, is that depending on what size your axles are, you may only need to swap the hubs out. It might be worth pulling your hubs off, since the wheel is damaged anyways, and checking to see what bearings you've got in your hubs. If there is an 8 on 6-1/2" hub that uses similar bearings, you could just swap the hubs and wheels and have the higher capacity you're looking for. It's not going to upgrade the overall capacity of the trailer frame and axles, but it will give you that added peace of mind that you're seeking to ensure that this catastrophic failure of your wheels won't likely happen again in the future.

If you can let me know what you find when you pull the hubs, I'm happy to see if there is something we can make work!

expert reply by: Erik B

1

Answer 1

Replacing the 15 inch wheels on your 2017 Jayco Eagle HT 29.5BHDS with 16 inch wheels will depend on how much room you have in the wheel wells. There needs to be at least 3 inches of clearance between the top of the wheel and the bottom of the fender…

view full answer...

Answer 2

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

view full answer...

Answer 3

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.

view full answer...

Answer 4

Thank you for that information with the photo, and I reached out to Lippert to find the pin box you have, and they told me that you had a Lippert 1621HD pin box. We do have the MORryde cushioned pin box that will work as a replacement with the…

view full answer...

Answer 5

MORryde #MR64VR, #MR74VR, #MR84VR all have a GTW of 18,000lbs but each have a finetuned spring capacity for a smoother ride which is why you see 11.5k listed for the #MR64VR. Since your 2018 Grand Design Reflection 303 has a GVWR of 11995 and…

view full answer...

Answer 6

All the MORryde Cushioned 5th Wheel Pin Boxes #MR57VR, #MR37VR and #MR97VR will share the same dimensions and are nearly identical to the Lippert 1716 5th Wheel Pin Box #LC1324791. I have attached a technical drawing for the MORryde pin boxes similar…

view full answer...

Answer 7

The Trailair Flex Air 5th Wheel Pin Box #LC369535 you mention will replace Lippert 1621 pin boxes, so if you have a 1621 pin box this will work for you. If you are unsure which pin box you currently have, you should be able to locate the…

view full answer...

Answer 8

It is indeed the same product. Curt, and TrailAir are both owned by Lippert, so it's the same exact product as the Lippert TrailAir you ordered, just with a Curt sticker on it.

view full answer...

Answer 9

Yes, the Lippert Flex Air pin box part #LC369535 that you referenced is the correct fit for your Grand Design Momentum 376TH that currently has a Rota Flex pin box. From previous customers we know you have a 1621HD pin box which is what this fits.

view full answer...

Answer 10

We offer 16-inch tires, 16-inch wheels and also many pre-mounted wheel/tire combinations. You can use the linked page to see all. Just click on the item you want - tire, wheel or tire-with-wheel - and the preferred type, radial or bias ply. You can…

view full answer...

Answer 11

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

view full answer...

Answer 12

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

view full answer...