How Tight Does the Curt Stud Mount Lunette Ring have to Be to Still Allow it to Swivel

Question

Question:

How tightly must the fastener be tightened at installation yet still allow the swivel action? Should a large flat washer be installed on both sides to facilitate the swivel action?

asked by: K. G

0

Expert Reply:

You will want to be able to use the cotter pin to keep the nut in place on the Curt lunette ring # C48530. So it will need to be threaded in far enough for the pin to go through the shank of the ring to hold the nut on.

Using flat washers will be fine as long as the nut can still thread on far enough.

expert reply by: Michael H

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Answer 1

Grade 8 bolts are recommended for installing the Buyers Products 3" I.D. Heavy-Duty Forged 4-Bolt Mount Lunette Ring #337BDB1394 that you referenced. We actually have a mounting kit for this with part #3378530 that includes the bolts. Then…

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Answer 2

It sounds like you might want to have a look at something like the Lock N Roll Articulating Hitch w/ 3-Position Channel - 2" Receivers - Vehicle Side - 11K #336VS503505 which will slide into a 2" hitch receiver and give you a…

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Answer 3

I checked with Buyers Products and they said they cannot confirm a weight rating for the #337LW847. The only info they could pass on was that it conforms to ASTM A788.

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Answer 4

I went out to the warehouse and pulled Curt Stud Mount Lunette Ring #C48530 and took some measurements for you. Take a look at the photo which shows the dimensions of the Stud Mount Lunette Ring. The dimensions are: Mounting stud, Threaded portion…

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Answer 5

It sounds like you are going to need the Buyers Products 2-1/2" I.D. Forged Alloy Steel Lunette Ring with Nut #337BDB12503 that fits a 1-1/2" mounting hole. I checked the Buyers Products 3" I.D. Forged Alloy Steel Lunette Ring with Nut…

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Answer 6

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 7

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 8

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.

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Answer 9

Pintle hitches are made to fit certain sized Lunette rings. The rings that we carry are only available in 2-1/2" or 3" diameter sizes. For example, the Curt Pintle Hook for 2" Hitches #C48004 fits lunette ring couplers with a minimum…

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Answer 10

The Tulga T10 D2 5th Wheel Hitch is more for semi-tractor applications and has a pretty big draw-back in that you cannot adjust the hitch head height which is critical for fifth wheel towing because you need to be as level as possible or you will…

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Answer 11

Yes, the Sleeve-Lock Trailer Coupler #CTA-196 will fit the channel bracket that comes with the Brophy Lunette Ring w/ 3-Position Adjustable Channel Bracket #BR43ZR. The bolt holes match as well when it comes to size and spacing so you'll be good…

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Answer 12

Yes, the Dexter hub part #8-287-14UC1 can have grease used in it instead of oil. The only difference is the seal which an oil seal works just fine with grease.

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How Tight Does the Curt Stud Mount Lunette Ring have to Be to Still Allow it to Swivel

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