I would think the large hole in the backing plate in which the backside of the wheel cylinder fits snuggly is to take the side to side stress, leaving the bolts to keep the cylinder in place up against the backing plate. Use the grade five and get some sleep.
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1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03)
1998 S10 short bed
2002 S10 Blazer
1942 Oldsmobile
1958 Massey Harris Pony
1951 Wife
Killingworth, Connecticut
May those who love us, love us, any of those who do not love us, may God turn their hearts.
And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping.
A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.
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