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Old 07-18-2018, 08:01 AM   #1
Junior Member
Join Date: Jul 2018
Location: Pittsfield
Posts: 3
New guy with first question

Hi all,
I have a fifth air borne pin box and need to replace the air spring. It appears there are 2 sizes of air bags, one with bolt holes 1 & 3/4 inch spacing and one with 2 & 3/4 inch. Of course mine is the one E trailer does not stock. Has anyone replaced this and where did you get the spring? I would pull the spring to see if I could find a part #, but I am in PA and my trailer is in NC.
Thanks for any help,

PS : The reason I think I need to replace the air bag is that In put 85 # in it and an hour later it had lost 11 # and overnight it lost 20 #.

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Old 07-18-2018, 09:30 PM   #2
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Join Date: Sep 2015
Location: Chetwynd, BC
Posts: 109
Don't have one , but check the fill valve.
Brent W
2013 3500 Ram
2015 Fuzion 325
2008 Goldwing
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