Recommended Suspension For Adding a 2nd Axle To 12 Foot Coleman Tent Trailer

Question

Question:

I want to make my old 12 ft. 70s style Coleman tent trailer a tandem axle so I can carry my 2 ATV. It currently has a single solid axle with leaf springs. Can I use an axle less system? If so, which one do you recommend? I am not too worried about current axle ground clearance.

asked by: Royal M

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Expert Reply:

You will need to use a tandem axle setup since installing a Timbren Axle-Less Trailer Suspension # A12RS440 will not allow the suspensions to work together. We have the Timbren Silent Ride Suspension which will allow you to use your current axle and add a 2nd axle. There are several kits available for different axle sizes which I have listed below for you to determine the best option for your Coleman trailer. All the kits are rated with a 4,000lb suspension so you will be able to eliminate your leaf springs for a superior rubber spring suspension.

Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 2-1/2" Round Axles # TSR4000T03
Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 2" Round Axles # TSR4000T06
Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 2" Square Axles # TSR4000T05
Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 1-3/4" Round Axles # TSR4000T02

expert reply by: Bud M

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Answer 1

The Timbren Silent Ride #TSR14KT01 can actually be installed by welding it on or bolting it on. You could do both welding and bolt it on, but that is not really necessary. I am not sure of the bracket to move it around on the frame, but they do have…

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Answer 2

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 3

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 4

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 5

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…

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Answer 6

For a single axle trailer, you want the shackle strap to be able to move so that you have the spring deflection needed for your suspension. Angled like the photo or even almost vertical is fine you just don't want the shackle strap to bind and…

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Answer 7

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 8

I have attached for you below some common torque values needed for a trailer suspension system but a lot of these will vary by bolt size and other factors. U-Bolts: Varies by Size - 1/2" bolts: 45 ft/lbs - 70 ft/lbs, 9/16" bolts: 65 ft/lbs…

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Answer 9

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Answer 10

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 11

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

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Answer 12

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is the…

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Recommended Suspension For Adding a 2nd Axle To 12 Foot Coleman Tent Trailer

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