<VV> What size is Saginaw U-Joint bracket bolt GM Part # 3887348

[Charles Lee]

What size is the U-Joint bracket bolt on a Saginaw 4-speed transaxle?

The assembly manual shows GM Part # 3887348 

I was surprised to see that the ones from the '65 transaxle are way too
small!

It's much larger than the bolts for earlier years, between 5/16" and 3/8"?

Plus it appears the holes in the metal "strap" may be too small too,
requiring replacements straps?

Charlie