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Re: brake booster question
The nuts are crushed a little keep them from backing off (so the holes are not totally round) If you can't factory use plastic insert nut( locking nuts) If you have headers use lock washers nuts. Or there is type that has 4 small cuts at the top of the nut squeeze lock. I think 3/8 studs, yes thread gauges come in handy more then you think.
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 1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed
Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change.
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