M105a3 springs for bobber

[wrenchhead22302]

I was just wondering if there is any difference in the springs of the m105 to m105a3. I found a deal on a M105a3 trailer to use for my bobber project. Just wanted to make sure that this should work the same as a m105 trailer spring set up that is commonly used when bobbing a deuce. Was planning to just use front springs but due to the cost of any that I can find close I am now leaning towards the trailer option.
Thanks
Bob