Jim,
As the frost comes out of the ground and the snow melts up here, I usually get out to some western MN junkyards that have a couple of 64-65's still in them. I'll see what is different from the 63 and let you know. I'm sure someone has already done this and has the information, like a Tom Mooney!
Take Care, Tim
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Tim McCluskey
Maplewood, Minnesota
ROA 9686 BCA 39089
1963 Riviera (Blue)
1963 Riviera (Black)
1985 Riviera T Type (White)