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197 Posts
The Kadee Coupler height gauge is great.

However, for 1:20.3 you need to add a 1/8" (0.125") shim between the upper and lower parts of the gauge to raise the coupler to the correct height.

A simple piece of styrene works great for this.

Jim
 

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Premium Member
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197 Posts
Matt,

I don't "know" if mine are at the same height as Kevin's. However, I suspect they are. I found this tip on the Yahoo 1:20.3 forum a few years ago.

Jim
 
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