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What is Bolt Pattern of Powered A-Frame Jack # EJ-3527-BBX  

Question:

What is the spacing between the mounting holes Center to Center. The one on my Mirage enclosed car hauler is 3 and 1/4 inches

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Expert Reply:

The Electric Jack w/ Footplate and 7-Way Plug # EJ-3527-BBX uses the standard 3 inch A-frame jack mounting pattern. The holes are slightly slotted too which means yours measuring 3-1/4 inch would fit just fine.

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Jameson C
Russell B. profile picture

Russell B.

7/25/2020

How do I determine what size jack I need? Tongue weight? Gross weight of trailer? Or is it something else?

ChrisR profile picture
Etrailer Expert

Chris R.

7/29/2020

The A-Frame jack just needs to be strong enough to support the loaded tongue weight of the trailer. It's nice to have a healthy safety margin though as that's just going to prevent the jack from working too hard - leading to faster lifting and hopefully a longer lifespan since it won't be under a lot of stress.

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