Electric brake testing on old trailer

   / Electric brake testing on old trailer
  • Thread Starter
#101  
Guys, I 'm very close to purchasing back plates from r and p carriages. I have spotted two different sets that seem to be slightly different both at the same price, hence questions.

1 is called 10.2 shoe which is referred to in detailed text as 10 1/4 ".

The other is simply listed as 10".

What am I missing here ? Inside as apposed to out side diameter measurement maybe ? Who would build back plate with such a small difference and why ? Maybe a typo on their site ? Thought I 'd ask here before callin 'em to see if what they say rings true.
 

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