C2: Steering box bolts; rear diff cover washers

[Gary B.]

Hi,

A couple of questions about bolts and lock washers for my 66.

1) Does anyone know of a source for new or good used carriage bolts with the RWB headmark that hold the steering box to the frame? I have one good bolt. I need 3 more; 2 for the steering box and one for the idler arm. I've tried America's Finest Corvettes and Michael hasn't been able to find any with the RWB headmark.

2 Are the lock washers for the bolts that hold on the rear differential cover supposed to be black phosphate or clear zinc? The repro bolts I bought from Paragon are zinc, but my originals are so rusty I'm thinking they must have been black phosphate.

Thanks in advance,

Gary

[Joe L.]

Re: C2: Steering box bolts; rear diff cover washer

Gary----

1) I don't know of a source for the bolts. Even the non-correctly headmarked bolts are difficult to find. You could try Paragon Vintage. They have lots of old bolts in boxes. Also, try Pacific Corvette. Ask them for a GM #3820342, but specify the headmark that you want, too.

2) The original lock washers used on the differential cover bolts were black phosphate or black oxide. The Paragon bolt kits do come with the zinc lock washers. If you want the correct lock washers, you'll have to locate them elsewhere. These are getting hard to find these days. Most hardware, even grade 8, is going to plated finishes. You can't even get this lockwasher in black phosphate or black oxide from GM.

[Gary B.]

Thanks Joe. *NM*