![]()  | 
  This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity. | |||||
| The Forum | Parts and Services | Unofficial Allis Store | Tractor Shows | Serial Numbers | History | |
38's | 
 
    Post Reply  
   | 
  
| Author | |
   
   Charlie175  
   
   Orange Level  
   Joined: 11 Sep 2009 Location: Shenandoah, VA Points: 6369  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Topic: 38'sPosted: 15 Sep 2014 at 7:20am  | 
 
| 
   
    
   A lot of local clubs will not allow 38's on WC/WD/D17 as they say it was a aftermarket add-on and not factory. 
   
  Does anyone have a copy of the parts book indicating that AC listed 38's wheels as a option? 
    | 
 |
| 
   
     
     Charlie  
   
  '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD  | 
 |
![]()  | 
 |
| Sponsored Links | |
![]()  | 
 |
   
   DrAllis  
   
   Orange Level Access  
   Joined: 12 Sep 2009 Points: 22149  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 15 Sep 2014 at 7:38am | 
 
| 
   
    
   Just look in ANY AC parts book. 36's were the option on a WC........38's on all others.
    
   
   | 
 |
![]()  | 
 |
   
   BennyLumpkin  
   
   Orange Level  
    
   Joined: 22 Mar 2010 Location: Centre Hall, PA Points: 2657  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 15 Sep 2014 at 11:00am | 
 
| 
   
    
   Didn't high crops run 38's? 
    
   
   | 
 |
| 
   
     
     Central PA Allis Express 
   
  1934 WC254 1945 WF 1945 WC135755 1951 WD68085 1953 WD45-150217 1957 WD45D-230744D B110  | 
 |
![]()  | 
 |
   
   Charlie175  
   
   Orange Level  
   Joined: 11 Sep 2009 Location: Shenandoah, VA Points: 6369  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 15 Sep 2014 at 11:14am | 
 
| 
   
    
   Yes but when I point this out, the main comment back is then you need to have all the other high crop stuff on the tractor. 
   
  Trying to keep Allis down :)  | 
 |
| 
   
     
     Charlie  
   
  '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD  | 
 |
![]()  | 
 |
   
   XT in pa  
   
   Orange Level  
   Joined: 21 Apr 2011 Location: hickory pa Points: 711  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 15 Sep 2014 at 12:16pm | 
 
| 
   
    
   The thing is when you put 38's on an allis it makes them a different tractor. And harder to beat !!   
   
  Edited by XT in pa - 15 Sep 2014 at 12:16pm  | 
 |
| 
   
     
     190XT,D17and 7045 
     
   
   | 
 |
![]()  | 
 |
   
   Bolivar Boy  
   
   Orange Level  
   Joined: 27 Dec 2011 Location: wooster, ohio Points: 641  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 21 Sep 2014 at 10:12am | 
 
| 
   
    
   Anybody explain why 38's make more traction than a smaller tire ? 
   
   | 
 |
![]()  | 
 |
   
   mike a  
   
   Bronze Level  
   Joined: 12 Dec 2009 Location: MN Points: 173  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 21 Sep 2014 at 4:07pm | 
 
| 
   
    
   yes,when the tires start to dig down,the next bar pulls  on tall tires.
    
   
   | 
 |
![]()  | 
 |
   
   studer automotive  
   
   Orange Level Access  
   Joined: 10 Sep 2013 Location: jeromesville,oh Points: 566  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 21 Sep 2014 at 6:52pm | 
 
| 
   
    
   So dropping air pressure will sort of have the same result?
    
   
   | 
 |
| 
   
     
     a-c 185-d y/r cab turbo soon 
   
  99 f-250 7.3 4x4 86 mustang5.0 owned since 8/93  | 
 |
![]()  | 
 |
   
   XT in pa  
   
   Orange Level  
   Joined: 21 Apr 2011 Location: hickory pa Points: 711  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 21 Sep 2014 at 7:42pm | 
 
| 
   
    
   It's more foot print. Like 16.9x28 compared to 16.9x38. The 38 has more foot print and is a lil faster. 
    
   
   | 
 |
| 
   
     
     190XT,D17and 7045 
     
   
   | 
 |
![]()  | 
 |
   
   bradley6874  
   
   Orange Level  
   Joined: 05 Sep 2010 Location: salisbury md Points: 1349  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 21 Sep 2014 at 8:34pm | 
 
| 
   
    
   Ok so on my wd iam running 18.4 26 which have a foot print of 242 sq inches and 15.5 38 has a 189 sq inch foot print acording to Firestone data book  which is a aprox 30 % less but every body says the 38 s are the way to go  anybody explain
    
   
   | 
 |
| 
   
     
     You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul
     
   
   | 
 |
![]()  | 
 |
   
   DrAllis  
   
   Orange Level Access  
   Joined: 12 Sep 2009 Points: 22149  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 21 Sep 2014 at 9:34pm | 
 
| 
   
    
   A tire width of 18.4 usually isn't allowed in Antique pulling......max width of 15.5's.
    
   
   | 
 |
![]()  | 
 |
   
   studer automotive  
   
   Orange Level Access  
   Joined: 10 Sep 2013 Location: jeromesville,oh Points: 566  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 22 Sep 2014 at 7:06am | 
 
| 
   
    
   Yes I wanna here the debate on this as well?
    
   
   | 
 |
| 
   
     
     a-c 185-d y/r cab turbo soon 
   
  99 f-250 7.3 4x4 86 mustang5.0 owned since 8/93  | 
 |
![]()  | 
 |
   
   mattb  
   
   Orange Level  
   Joined: 11 Jan 2011 Points: 348  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 22 Sep 2014 at 9:29am | 
 
| 
   
    
   taller tire has more tire contacting the ground in front and behind the center of tire has less of a hole to crawl out of when the tire starts to bite in.
    
   
   | 
 |
![]()  | 
 |
   
   bradley6874  
   
   Orange Level  
   Joined: 05 Sep 2010 Location: salisbury md Points: 1349  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 22 Sep 2014 at 3:58pm | 
 
| 
   
    
   If its the same width yes   if the  contact area is the same  which would have the advantage short and wideer would be getting more new bite where tall skinnie bites more times in the same loose hole  and this is not a discussion about rules .   
    
   
   | 
 |
| 
   
     
     You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul
     
   
   | 
 |
![]()  | 
 |
   
   mattb  
   
   Orange Level  
   Joined: 11 Jan 2011 Points: 348  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 23 Sep 2014 at 10:09am | 
 
| 
   
    
   hardly any acs I pull against run 28s anymore around here 99% of the time they just don't do very well
    
   
   | 
 |
![]()  | 
 |
   
   bradley6874  
   
   Orange Level  
   Joined: 05 Sep 2010 Location: salisbury md Points: 1349  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 23 Sep 2014 at 4:41pm | 
 
| 
   
    
   Matt is that because you cant run wider short tires  and  yea if you can only run 15 innc wide yea a 38 will def pull better than a 28  up here we got tired of arguing about what size went on what so our rules are simple black round made out of rubber not cut 18 incc max width under 9000 lbs
    
   
   | 
 |
| 
   
     
     You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul
     
   
   | 
 |
![]()  | 
 |
   
   mattb  
   
   Orange Level  
   Joined: 11 Jan 2011 Points: 348  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 24 Sep 2014 at 8:31am | 
 
| 
   
    
   around here tire  size is 15.5 by 38 or 16.9 by 28 most guys that run short tires use 16.9 by 26 and they usually don't come close. have pulled against a guy with 16.9 by 30s and hes pretty tough so if your gonna run short tires id go with as wide as you can
    
   
   | 
 |
![]()  | 
 |
   
   Fields  
   
   Orange Level  
    
   Joined: 25 Apr 2011 Location: Reedsburg, Wi Points: 359  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 30 Sep 2014 at 11:18pm | 
 
| 
   
    
   Here is the page out of the manual.  And the puller I was going to buy. 
   
  ![]() ![]() ![]() ![]()  
    | 
 |
![]()  | 
 |
   
   nborga87  
   
   Silver Level  
   Joined: 08 Jun 2010 Location: cordova, md Points: 115  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 04 Oct 2014 at 9:30pm | 
 
| 
   
    
   The taller tire is gonna have more ground speed.
    
   
   | 
 |
![]()  | 
 |
   
   KGood  
   
   Orange Level  
   Joined: 17 Nov 2009 Location: Logansport,IN Points: 955  | 
  
   
      Post Options
    
        Thanks(0)
      Quote   Reply
   
     Posted: 05 Oct 2014 at 11:20am | 
 
| 
   
    
   When we started we were able to run 18-4/28 but had to carry the manual that showed they were available (rice tires)even though they were 26's. Then we got tired of getting whooped on went to 15.5/38's. But there was one track we walked away from everybody when we had the 28's on but I know we weren't competing.  
    
   
   | 
 |
![]()  | 
 |
    Post Reply  
   | 
  |
|       
  
  Tweet   	
    | 
 
| Forum Jump | Forum Permissions  ![]() You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum  |