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"Chevrolet By The Numbers".

Post your code and the wheel size, someone will check it out for you, I'm sure.
 

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I don't see a XD listed for 67, 68, or 69. I'm not sure where the -7 is located but the examples show the K1 1 with the second one beside or under the K1 as the year. So if you have a 9 in that location it should be the year; 69 or 79?

My 1968 service manual indicates that Chevelles use 14 x 5 inch wheels. SS396s use 6 inch wide wheels. My Chevrolet By the Numbers indicates that the code for the 1968 Chevelle 14 x 5 J wheel is code XC. This wheel has a 1.00 inch offset. By my calculation that would give the stock wheel a 4.0 inch backspacing.

Remember that the width of a wheel is the bead to bead distance, the overall width (outside to outside) will be about one inch greater.

Disk brakes would have used a different wheel. Did your El Camino originally have disk brakes?

Bruce
 

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Discussion Starter · #8 ·
68L79ELCAMINO said:
ok here it is.



K1 9-----XD
-7

The 7 is right under the 1. is the 9 a month? sept? i'll look at the XD again but i'm positive it is XD. and yes it did come with factory 4 piston caliper disc.
 

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68L79ELCAMINO said:
The 7 is right under the 1. is the 9 a month? sept? i'll look at the XD again but i'm positive it is XD. and yes it did come with factory 4 piston caliper disc.
Where is the 9, then. I guess a photo would be helpful. A 68 Chevelle parts book would be a good place to look. Unfortunately my books of that vintage only have Passenger and Corvette information.

What are the dimensions of your wheel?

Bruce
 

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Discussion Starter · #10 ·
I'll get a pic tonight and i will measure it. Thanks so far for your help Bruce. Hopefully we can figure it out. I guess it doesn't really matter what it is, but I just would really like to know. Scott
 

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This is how the wheel code breaks down.
K 1 9 XD
7
The K designates: Kelsey Hayes (manufacturer)
The 1 designates: Chevrolet
The 9 designates: month (Sept)
The 7 designates: year (1967) Seems sometines it's in front of the code(XD) and sometimes it's underneath the K19..
XD is the code which I have been unable to find,but the code would show wheel dia, width, bolt pattern, back spacing.etc... The XD code would also tell them if it were for disc brakes or not.

EDIT... Example: The wheels I have are K 1 7 XE 8 Kelsey Hayes, Chevrolet, July, 1968 6 X 14 with 4 and 1/2 back spacing, 4 and !/2 bolt pattern..
 

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Nice photos.
Chevrolet By The Numbers indicates that K1 with the 7 under it indicates
K = Kelsey-Hayes
1 = plant = Romulus, MI
7 = year

The 9 next to the valve stem = month of wheel assembly
The 1 on the other side of valve stem = day of month

So the wheel dates as September 1, 1967. Does this fit with the build date of your El Camino?

Still haven't found XD, but it could very well be the disc brake version of the 14 x 5 wheels used on the non-ss Chevelles and El Caminos.

Chevrolet by the numbers shows the following wheels for the Chevelle;
Chevelle SS and HD 14 x 6 JK code 6 (I think these are drum brake wheels for the SS, same as used on the 66 and 67 SSs)
Chevelle D/B 14 x 6 JJ code XE (I think these are the SS disc wheels that Bill has.)
Chevelle Rally 14 x 6 JJ code XB (rallys for disc brakes)
Chevelle Pass. and Wagon 14 x 5 J code XC (I think these are standard drum brake wheels)

So there isn't a XD listed but it certainly would fit the sequence as a standard (14 x 5) disc brake wheel.

I think 5 inch wheels should have 4 in back spacing (regardless of drum or disc) and 6 inch wheels should have 4 1/2 back spacing regardless of drum or disc since all of the wheels have either 1.00 or .88 inch offset.

Bruce

69SSMIKE, I don't know who the manufacturer T is unless it is Norris Technologies. I couldn't find a XA code but the date could be October 1, 1966 or 1976 or 1986.
 

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AZCamino said:
Nice photos.
Chevrolet By The Numbers indicates that K1 with the 7 under it indicates
K = Kelsey-Hayes
1 = plant = Romulus, MI
7 = year

.
The Jerry MacNeish Camaro book says the 1 designates Chevrolet not the plant. It would seem more logical. Like the #1 in a Chevrolet vin number??
 

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Discussion Starter · #18 ·
these dates fit in exactly with the other dates i have found on my car. i just measured the wheel. it doesn't match with anything discussed in this thread.
5" wheel
3.5 " back space
= wheel flat on the ground face down. rotor side of mounting flange to outer most edge of the wheel. i used a straight edge across wheel. this is right isn't it?????
 

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66 Chevelle SS396 & 66 Chevelle 327 Convertible.
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Just have to add: The K 1 7 in a triangular pattern. K=Kelsey Hayes; the 1=Plant 1 in Romulus, MI; the 7=1967. The 9 by the valve stem is Sept, the 1=1st day in the month. What is the oval width? Then subtract 1, for example if the width is 7" then the rim is actually a 14 X6. In the chevelles(Not El camino) in 67 the drum brakes had a 1.00 offset, if the car had disc brakes the off set would be .88, so a 6" rim the backspacing would be 4.5" on the 1.00 offset or 4.375 on the .88 offset. Subract .5 for a 5" rim. Also in the inside face on the rim you should have the size stamped along with the kelsey logo. Never have seen a XD code, maybe unique to El Camino's.

If back spacing is 3.5" on a 5" rim which is actually 6" wide that would mean the offset would be .5". The only 14x5 rims that i've seen close to this was the standard rim on all non SS Camaro's.
 

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68L79ELCAMINO said:
these dates fit in exactly with the other dates i have found on my car. i just measured the wheel. it doesn't match with anything discussed in this thread.
5" wheel
3.5 " back space
= wheel flat on the ground face down. rotor side of mounting flange to outer most edge of the wheel. i used a straight edge across wheel. this is right isn't it?????
Sounds like you are measuring the back spacing correctly; mounting surface to edge of the wheel. With a 3.5 backspacing and a 5 inch wheel that would put the offset at 0.5 inch. which doesn't make sense. Chevelles all have about 1.00 offset. 67 Camaro, 68 Passenger, and 68 Chevy II had a 14 x 5 J wheel with .56 offset. This wheel is listed as code B and indicates all ex. D/B. I don't know.:confused:

I assume you have actually used this wheel on the front of your El Camino and it clears the calipers?

Bruce
 
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