Camaro Research Group Discussion > Originality
1968 Camaro ZJ7 Rally wheens
fsc66:
In 1968, were disc brakes required in order for you also to have the optional ZJ7 Rally Wheels. Original Chevrolet Price books under ZJ7 state: "Available with Power Disc Brakes" in the first and second edition, Chevrolet Price and Facts Book, GM Heritage and Finger Tip Facts state the same.
Have read some posts to the contrary...
Paul
bertfam:
--- Quote ---In 1968, were disc brakes required in order for you also to have the optional ZJ7 Rally Wheels.
--- End quote ---
No, there were two 14" rally wheels in 1968. Cars that came with Power Disc Brakes (RPO J50/J52) received the XG wheels, and cars that came with drum brakes got the XN wheels. The XG wheels had a different offset than the XN wheels to clear the brake calipers.
Ed
KurtS:
That's the proof that rallys didn't require discs. But I'm not sure how much of the dealer lit reflected that.
cook_dw:
Never understood why they would have 2 different wheel offsets.. Just use one that handles both and move on.. Unless it drastically changed the wheelbase specs who would have cared..?.
bertfam:
--- Quote ---Never understood why they would have 2 different wheel offsets.. Just use one that handles both and move on.. Unless it drastically changed the wheelbase specs who would have cared..?
--- End quote ---
One of the many reasons Chevrolet needed to clean house!
In 1968, Chevrolet had 6 "basic" car models (not including trucks, vans or sub-models like Caprice, El Camino, Chevelle 300, etc...) to choose from:
1. Full size
2. Chevelle
3. Camaro
4. Nova
5. Corvette
6. Corvair
In that year, there were 16 different wheels you could get (which doesn't even include the hub cap options, which was even more)!
In 1969, again, the same 6 basic car models, but now there was over 25 different wheels in the lineup!
Now you can understand why it was such a nightmare trying to sort all this out. Not only from a salesman point of view, but all the way up to supply, assembly and budgeting!
--- Quote ---That's the proof that rallys didn't require discs. But I'm not sure how much of the dealer lit reflected that.
--- End quote ---
Kurt, my belief is that originally, the 1968 model year was going to be like the 1967 model year (Rally wheels only available with J50/J52), but at some point they decided to offer the Rally wheels to non J50/J52 cars as well, but the documentation never got updated.
The low JZ7 option totals (8,047) reflect this. If you look at the totals for 1968:
235,147 total cars built. Of that, 20,117 came with with J50/J52 disc brakes and 7,199 came with Z28 (which required J50/J52). This leaves 207,831 cars that came with drum brakes.
I could be wrong, but I don't believe the published ZJ7 totals (8,047) include J50/J52 cars, but only drum brake cars. Do you agree?
Ed
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