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14.9 -38. 15.5-38

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=83624
Printed Date: 29 Apr 2024 at 8:33am
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Topic: 14.9 -38. 15.5-38
Posted By: WildBill
Subject: 14.9 -38. 15.5-38
Date Posted: 21 Jan 2014 at 9:01pm
Ok. I see sooo many pullers listing they use 15.5 -38. My question is the 14.9 -38 shows on the firestone size chart that it has more contact area per square inch to the ground . And it's taller so the next lug is closer to contact . Just confused why the 15.5-38?
15.5-38. 189
14.9-38.   200

I have both sets and the 14.9 visually are taller . Just curious to the pros to comment why wud I use the 15.5-38 over 14.9 's
Mounting on 14 inch rim .


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Allis fan for life !   B,C,2-WC'S,WD45G,D19G,190xt ,LLSS 8010, terra tiger refurbished



Replies:
Posted By: DrAllis
Date Posted: 21 Jan 2014 at 9:07pm
Because 14.9 x 38's are almost impossible to find anymore.


Posted By: WildBill
Date Posted: 21 Jan 2014 at 9:17pm
I guess in these parts I had no issues . Funny I figured Illinois or southern parts u see more . So is my point valid or off the rocker for reason to use the 14.9's

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Allis fan for life !   B,C,2-WC'S,WD45G,D19G,190xt ,LLSS 8010, terra tiger refurbished


Posted By: Juiceman
Date Posted: 21 Jan 2014 at 9:43pm
If you aren't worried about a speed limit i would go with the 14.9s. (Not to brag), but i have a beautiful set of 14.9 151s that are about 15 years old and hard as Chinese arithmetic, but i am to close to the speed limit as it is and need rpm, so the 14.9s are on a 720 diesel for looks and i found a set or 15.5 armstrongs to pull with. They seem to be working fine. If you have the power for the taller tire, and aren't worried about blowing the horn my vote is the 14.9s.


Posted By: XT in pa
Date Posted: 22 Jan 2014 at 5:09am
The 15.5s are a low profile tire. Not as much sidewall to rinckel at low pressure.

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190XT,D17and 7045


Posted By: Larry(OH)
Date Posted: 22 Jan 2014 at 6:17am
youve somewhat answered your own question.  Alot of the rules specify a certain "foot print" and the 15.5 fits and the 14.9 doesnt.  That is why alot of the rules say 15.5 max for such and such class

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'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie

*ALLIS EXPRESS contact*

I can explain it to you, BUT I cannot understand it for you!!



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