Coupling assy

[rob love]

The problem with merely trying to space a washer in the mount is that the bolt really does not have much room for variation anyway. By the time you get the cotter pin through the hole for the castellated nut, you will still be at the same height no matter how many washers are put on top.

I compared the over all length of the new bolt with the original carrier bolt, and the original is a little longer, but not enough to make the difference. The original motor mounts were well squashed like a turtle on the freeway.

I was trying some different thicknesses today and I think I am going to go with a 5/16 plate underneath the motor mount bracket. I made up a pair of 1/4" plates, and it reduced the variation from the top to the bottom to about .006 thou. I think another 1/16 at the mounting bracket is going to make it perfect.

You are right about the difference between mounts on a car or truck, and the mounts on a carrier. The carrier is much more particular about the overall height. The male/female coupling gears are a reasonably tight fit, and everything in that area is quite beefed up and sturdy, so there is very little allowance for variation without causing undue wear or breakage. At least that is my take on it.