Mounting Dimensions for Slipper Leaf Spring e74SR and Tandem Hanger Kit APT6SE

Question

Question:

On the diagram for tandem 7k axles and the 26 5/8” slipper springs is it all correct as it is. With spring open ends facing towards the front of the trailer. So a person could use all this information and measurements shown to assemble ?

asked by: John E

1

Helpful Expert Reply:

With the 26-5/8 inch long leaf spring part # e74SR you referenced and the hanger kit part # APT6SE you also mentioned the dimensions in the chart you referenced would be correct to use. The distance between the front and center hanger should be 28-1/2 inches, distance between center and rear hanger 29-1/2 inches, and the distance between axle centers 33 inches. This will then put the distance from the trailer frame to the axle center right at 4-1/2 inches.

expert reply by: Jameson C

1

Answer 1

The slipper spring should sit on the hanger bolt somewhere in the center of the flat part so that it allows a bit of movement as the suspension articulates. The curved ends will generally going to keep the spring from moving too far if the suspension…

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Answer 2

The highest weight capacity available for a 15 inch wheel with a 6 on 5-/12 inch bolt pattern is 2,830 lbs. You will need to use a 16 inch wheel with a 6 on 5-1/2 inch bolt pattern to get a wheel that has a 3,000-lb or higher weight capacity. I have…

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Answer 3

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 4

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 5

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 6

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 7

Hey Joe, thanks for the information! To replace your Dexter 072-079-01 leaf springs, I recommend the 7-Leaf Double-Eye Spring for 8,000-lb Trailer Axles item #EM28AJ. This is a 4,000 lbs leaf spring designed for 8,000 lbs axles. It's got 7-leafs…

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Mounting Dimensions for Slipper Leaf Spring e74SR and Tandem Hanger Kit APT6SE

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