There seems to be another difference on the 1963 Corvettes, the battery tray retaining bolts.
Later years seem to have bolts similar to the bolts used on the lower front shocks.
The ones with a single integral captive washer, without a separate flat or lock washer.
My 63 has 5/16 X 7/8 NC bolts with a captive lock washer and a separate one inch outside diameter washer.
They take a standard 1/2 wrench.
They also have the anchor embossed on the heads. It was difficult to photograph.
Something to do with too much battery acid over the years.....
Every single catalog I have looked at lists only one bolt and it is the later style one.
My Corvette is a late December car. Is this consistent with other early 63's?
If this is in the judging manual I failed to find it.
I am included pictures of my recently black phosphate battery tray bolts and washers.




If anyone has any ideas were to get one of these bolts let me know as one broke off when I removed it.
Has to be another usage, possibly on an early Impala battery tray?
Thanks
Rick
Later years seem to have bolts similar to the bolts used on the lower front shocks.
The ones with a single integral captive washer, without a separate flat or lock washer.
My 63 has 5/16 X 7/8 NC bolts with a captive lock washer and a separate one inch outside diameter washer.
They take a standard 1/2 wrench.
They also have the anchor embossed on the heads. It was difficult to photograph.
Something to do with too much battery acid over the years.....
Every single catalog I have looked at lists only one bolt and it is the later style one.
My Corvette is a late December car. Is this consistent with other early 63's?
If this is in the judging manual I failed to find it.
I am included pictures of my recently black phosphate battery tray bolts and washers.
If anyone has any ideas were to get one of these bolts let me know as one broke off when I removed it.
Has to be another usage, possibly on an early Impala battery tray?
Thanks
Rick
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