1969 Z/28 spare tire hook size?

[68camaroz28]

Yes! And for sure they are phosphate and not zinc. What many do is take a new one, glass bead the zinc off and phosphate.

[Mike S]

 Or.....Just dip the zinc plated part into a mixture of 20% water and 80% muriatic acid and in a few minutes the part will be bare steel and ready for phosphate.

Mike

[BULLITT65]

for some reason when I look at the reproduction they look like they are thinner stock, than the originals. I would love to see someone mic an original and mic a reproduction to compare.

[cook_dw]

Yes! And for sure they are phosphate and not zinc.

Glad to see my memory hasnt completely went to

[ZLP955]

Thought I'd add that I happened to come across this reproduction j-bolt on ebay, looks close to the originals in finish, length and rod diameter. I asked the seller to confirm length and he said 9.75"
http://www.ebay.com/itm/401010243610
I've bought one because Mike (rszmjt) said the bolt in his 69 RS/Z is 9.75", in the older thread I linked to above. Whether 9.5" or 9.75" doesn't matter (maybe several original suppliers anyway) since my current bolt is about an inch shorter. Will post findings on receipt.

[bcmiller]

Tim, I think that hook looks like an original.

[BULLITT65]

I like the finish, I look forward to your report once you receive it.

[ZLP955]

Tim, I think that hook looks like an original.

Me too, hoping the one that arrives looks like that too! Seller describes them as reproductions, and he had 10 of them available originally......

[bcmiller]

I ordered one too.

[ZLP955]

Ah, then you'll get yours first Bryon, mine is heading via the ebay global shipping program; according to tracking info it just paid a third visit to Chicago before (hopefully!) a plane ride via LA to Sydney.....

[ZLP955]

Well, after all the circling around Chicago, the hook made it to Sydney via Tokyo in only 24hours, and then headed west to arrive in this morning's mail. I'd describe it as natural in finish rather than phosphate like the originals, but easier to plate than first having to remove a silver zinc finish like most other reproduction hooks.
The overall length is 9.75", threaded length is about 5 3/8", and the rod diameter is 1/4".
For $6 plus shipping, I'm very happy.

[69Z28-RS]

In response to Austin's questions, I measured the diameter of my original hook the other day and got slightly over 0.30"  (measured 0.305 with a vernier caliper)...

[bcmiller]

The P&A 34 parts book from Feb 1969 suggests one part for most 69 coupes (3929975).  Space saver tire option used a different hook (3949607).

No reason for there to be a special hook just because it's a Z28. 

[69Z28-RS]

....
No reason for there to be a special hook just because it's a Z28. 

The only reason I might guess about would be the wider/larger wheel (15x7) which might require a longer hook... ?

[bertfam]

The only reason I might guess about would be the wider/larger wheel (15x7) which might require a longer hook... ?

Looking a CBTN, the offset for the 69 Z28 15" wheel is .30" and the offset for the other wheels is anywhere from .26" to .50" (depending on the wheel). Since the 15" wheel is actually less than most of the others there would be no reason to use a different hook for the Z28.

Ed