In the config file look for the queues and size, use the queue that has a "1" for the size, that should place your load in the middle of the car.
John
It should look like this; it's a partial of the car you are trying to configure. After you enter the kuid here, also enter the same kuid in "kuid-table"
 load5
  {
    size                                1
    
    attachment-points
    {
      0                                 "a.gengoods05"
    }
    
    allowed-categories
    {
      0                                 <kuid:-3:10042>
    }
    
    allowed-products
    {
      equp_trailer_empty_1              <kuid:473136:100762>
      equp_trailer_empty_2              <kuid:473136:101318>
      crane_boom                        <kuid:473136:101315>
      crane_boom3                       <kuid:473136:100568>
      caterpillar_scraper               <kuid:524343:6738>
      steel_pipes_yellow                <kuid:72730:61012>
      steel_pipes_grey                  <kuid2:92263:61113:1>
      steel_pipes_red                   <kuid2:92263:61112:1>
      steel_pipes_blue                  <kuid2:92263:61111:1>
      gas_pipe_bends                    <kuid2:97008:290822:1>
      gas_pipe                          <kuid2:97008:290821:1>
      5_stahlrohre_75cm                 <kuid:72730:61015>
      usa_trucks                        <kuid:95761:60101>
      6x6-2                             <kuid:473136:100476>
      6x6-1                             <kuid:473136:100475>
      liebherr                          <kuid:568300:100283>
      concret_panels                    <kuid:760902:1005>
		
		
	 
Do you change all that in the TTX car config or the products config???  cause I looked at the TTX car and it looks like this
extensions
{
  number_low                            "92007"
  number_high                           "92067"
}
script-include-table
{
  traincar_fx_library                   <kuid2:45324:555200:1>
}
mesh-table
{
  default
  {
    mesh                                "mesh_body/arn.im"
    auto-create                         1
  }
  
  shadow
  {
    mesh                                "mesh_shadow/Shadow.im"
  }
  
  body
  {
    mesh                                "mesh_body/body.im"
    auto-create                         1
  }
}
bogeys
{
  0
  {
    reversed                            0
    bogey                               <kuid2:45324:50204:1>
  }
  
  1
  {
    reversed                            0
    bogey                               <kuid2:45324:50204:1>
  }
}
queues
{
  load0
  {
    size                                11
    initial-count                       0
    product-kuid                        <kuid:46162:60005>
    
    attachment-points
    {
      0                                 "a.gengoods0"
      1                                 "a.gengoods01"
      2                                 "a.gengoods02"
      3                                 "a.gengoods03"
      4                                 "a.gengoods04"
      5                                 "a.gengoods05"
      6                                 "a.gengoods06"
      7                                 "a.gengoods07"
      8                                 "a.gengoods08"
      9                                 "a.gengoods09"
      10                                "a.gengoods10"
    }
    
    allowed-products
    {
      0                                 <kuid:-3:10013>
      1                                 <kuid:46162:60005>
    }
    
    conflicts-with-queues
    {
      0                                 "load1"
      1                                 "load2"
      2                                 "load3"
      3                                 "load4"
      4                                 "load5"
    }
  }
  
  load1
  {
    size                                2
    
    attachment-points
    {
      0                                 "a.billet1"
      1                                 "a.billet2"
    }
    
    allowed-products
    {
      0                                 <kuid:46162:60004>
    }
    
    conflicts-with-queues
    {
      0                                 "load0"
      1                                 "load2"
      2                                 "load3"
      3                                 "load4"
      4                                 "load5"
    }
  }
  
  load2
  {
    size                                4
    
    attachment-points
    {
      0                                 "a.slab1"
      1                                 "a.slab2"
      3                                 "a.slab3"
      4                                 "a.slab4"
    }
    
    allowed-products
    {
      0                                 <kuid:46162:60006>
    }
    
    conflicts-with-queues
    {
      0                                 "load0"
      1                                 "load1"
      2                                 "load3"
      3                                 "load4"
      4                                 "load5"
    }
  }
  
  load3
  {
    size                                2
    
    attachment-points
    {
      0                                 "a.slab1"
      1                                 "a.slab2"
    }
    
    allowed-products
    {
      0                                 <kuid:-3:10003>
    }
    
    conflicts-with-queues
    {
      0                                 "load0"
      1                                 "load1"
      2                                 "load2"
      3                                 "load4"
      4                                 "load5"
    }
  }
  
  load4
  {
    size                                6
    
    attachment-points
    {
      0                                 "a.log0"
      1                                 "a.log1"
      2                                 "a.log2"
      3                                 "a.log3"
      4                                 "a.log4"
      5                                 "a.log5"
    }
    
    allowed-products
    {
      0                                 <kuid:-3:10001>
    }
    
    conflicts-with-queues
    {
      0                                 "load0"
      1                                 "load1"
      2                                 "load2"
      3                                 "load3"
      4                                 "load5"
    }
  }
  
  load5
  {
    size                                1
    
    attachment-points
    {
      0                                 "a.gengoods05"
    }
    
    allowed-products
    {
      0                                 <kuid:46162:60007>
    }
    
    conflicts-with-queues
    {
      0                                 "load0"
      1                                 "load1"
      2                                 "load2"
      3                                 "load3"
      4                                 "load4"
    }
  }
}
thumbnails
{
  0
  {
    width                               240
    height                              180
    image                               "mesh_art/mesh_art_icon.tga"
  }
}
kuid-table
{
  arn_lib                               <kuid2:104722:2501038:4>
  0                                     <kuid:-1:42004201>
  1                                     <kuid2:45324:50204:1>
  2                                     <kuid2:45324:555200:1>
  gen_goods                             <kuid:-3:10013>
  ingots                                <kuid:46162:60005>
  billets                               <kuid:46162:60004>
  slab                                  <kuid:46162:60006>
  container40                           <kuid:-3:10041>
  container20                           <kuid:-3:10014>
  lumber                                <kuid:-3:10003>
  log                                   <kuid:-3:10001>
  trailer                               <kuid:46162:60007>
}