I believe (and if I’m wrong hopefully someone will chime in) that they were 1” in both movies. In GB1 they were the black rubber spacers and in GB2 they were swapped out for just regular steel spacers.
JWils23 wrote:I just measured the GB1 set I have from Joe Luna who’s using Nickatrons old molds and the bottom are 1”, the top is actually 1 3/16”.

When you measured the top spacer did you measure the end to the curve? I made spacers out of Hockey pucks and didn't realized that the groove in the spacer sits the frame to the motherboard at 1". That extra length of rubber curves around the groove on the bar of the frame, so the frame can mount flush in the spacer. If using steel spacers I believe all three spacers should be the exact length.
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