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Old 12-16-2015, 03:05 AM   #1
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Flex air long or medium ?

Can one of you fine gentlemen or ladies explain to me what the real difference is between the long or the medium Flex air pin box is? Not sure which I should buy. Which one gives more bed clearance?
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Old 12-16-2015, 03:16 AM   #2
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As far as I know the difference is the length between the box (where it bolts to the trailer) and the king pin. Now how that effects you...... Not sure. I would guess that the pin length is set to regards to weather or not you have a short bed truck. I wound imagine you need a long.... And a slide hitch to clear the Cab while turning. This is only a guess
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Old 12-16-2015, 03:50 AM   #3
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I added I believe, the long one. It seems to be the same length as the Tri-glide used by Redwood. I have an 8' bed and with the original pin box, I couldn't open my tailgate all the way. Now it drops down all the way with about 4" to spare. That was a nice surprise. On my 36RE, I don't think any thing shorter would have cleared the front cap.

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Old 12-16-2015, 05:17 AM   #4
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Just watch the rating, typically the only reason for the shorter pin box is a higher capacity.
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Old 12-16-2015, 01:23 PM   #5
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On my 36RL I replaced the roto flex with the Flexair long
I attached a chart you can use to see which one you need
Hope this helps
Attached Images
File Type: jpg img001.jpg (258.4 KB, 24 views)
Attached Files
File Type: pdf flex air long.pdf (389.0 KB, 11 views)
File Type: pdf flexair short.pdf (58.3 KB, 15 views)
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Old 12-16-2015, 04:13 PM   #6
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Quote:
Originally Posted by Shane Wood View Post
On my 36RL I replaced the roto flex with the Flexair long
I attached a chart you can use to see which one you need
Hope this helps
Well..... That makes even more since!
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