1967 Big Block Outer Flange and Inner Half Shaft Cap Bolts

[Richard M.]

Re: 1967 Big Block Outer Flange and Inner Half Shaft Cap Bolts

After all of this research I just had to use the originals and not the repro grade 8's.

Back from the plater ....

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[Joe L.]

Re: 1967 Big Block Outer Flange and Inner Half Shaft Cap Bolts

After all of this research I just had to use the originals and not the repro grade 8's.

Back from the plater ....

[ATTACH=CONFIG]61177[/ATTACH][ATTACH=CONFIG]61178[/ATTACH][ATTACH=CONFIG]61179[/ATTACH]

Rich-------


I hope the plater properly annealed these bolts after the plating.

[Richard M.]

Re: 1967 Big Block Outer Flange and Inner Half Shaft Cap Bolts

Joe, I'll ask again but I recall he does a bake after plating.

Rich

[Richard M.]

Re: 1967 Big Block Outer Flange and Inner Half Shaft Cap Bolts

Another bolt in question as per finish in the JG.

There are 4 bolts holding the strut bar bracket to the differential, part# 454905. This is a 3/8-16 x 3/4" bolt 300M (Grade 8).

I have found this car had 3 Grade 5's and one Grade 8. The Grade 8 has a circle with 6 radial lines. It appears to be originally black phosphate.

(insert photo here later)

The description in the P&A Standard Parts Catalogue states that for 300M bolts......

"Those showing 300M are Chrome Nickel Steel...."

What is the color of this bolt as specified? I cannot get a definitive answer through my research.

Reproductions are dichromate(gold) in color and I don't think this is correct. I need to get the proper Grade 8 bolts for proper specified strength for this bracket.
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I believe the color should be as commonly seen as a black oxide/phosphate finish as other Grade 8 bolts of the era were. The JG specifies cadmium/zinc(silver) finish which I think may be erroneous.

Rich

[Rich P.]

Re: 1967 Big Block Outer Flange and Inner Half Shaft Cap Bolts

Rich, contrary to what you think they are bright zinc grade 8. That is TFP. 67 headmarkings are WB, AS (large and small font), S (2 different configurations) and a few more. Hope this helps. I can post pictures if desired and if you need right ones I have them. Rich.

[Richard M.]

Re: 1967 Big Block Outer Flange and Inner Half Shaft Cap Bolts

Rich, contrary to what you think they are bright zinc grade 8. That is TFP. 67 headmarkings are WB, AS (large and small font), S (2 different configurations) and a few more. Hope this helps. I can post pictures if desired and if you need right ones I have them. Rich.

Thanks Rich, That's good info. Are they 6 radial lines? Pictures would be great.

I'll drop you a PM too.

Rich
edit...I just wire-wheeled that one I have here. It was painted with heavy black paint and after cleaning I see there is the "WB" and six lines.

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