Can someone please tell me what size the 1967 wheels are? How about bolt circle and backspace?

I've decided to "dress up" the rallies and don't know what size replacements I can put on it.

 

the stock 67 rally wheels are 15x6

 

Thanks. Anyone know the backspace, offset, or boltpattern circle dimensions? It seems to be very hard to fit new wheels to old cars, and they are very particular about these numbers.

Thanks again to those who know and share!

 

67 Ralleys are 15X6, 4.75" BC and have a 3.75 BS.

 

I hope that the bolt centers are 4.50" and not 4.75" cause I just ordered a set of chrome ralleys with that measurment?!!!

 

widest that came on a midyear were the 67 rally wheels. They have an offset code stamped on the outer rim, DC. On a stock 1965-66 5.5 inch steel wheel, that would yield about the same (3 inch+.5) backspacing - the added half inch is the distance from the tire mounting surface to the edge of the rim. The optional alloy wheels had adapters that required a deeper backspace to clear the spacer, in order to maintain the back edge of the wheel far enough from the front frame rails, rear trailing arm parking brake cable brackets, and the rear spring ends. OFFSET is a function of the relationship between the wheel rim centerline and the plane of the mounting surface of the wheel center section. If the plane of the wheel mounting surface of the center section is at the middle of the wheel rim, the offset is "0". OUTBOARD of the center of the rim, the wheel has POSITIVE offset. INBOARD of the center of the rim, the wheel has NEGATIVE offset. BACK SPACING refers to the distance that the wheel mounting plane of the center section is from the back edge of the wheel rim. BACK SPACING has no "positive" or "negative" dimension. Auto manufacturers usually use the OFFSET in describing specifications for wheels. Aftermarket wheel manufacturers often use BACK SPACING, since it is easier to understand and measure.
6x15 DC,YS,FI rally wheel offset +0.06" = 3.06+.5 backspace
7x15 AG rally wheel offset -0.28" = 3.32+.5 backspace
8x15 AZ rally wheel offset -0.50" = 3.50+.5 backspace
6x15 FW rally wheel offset +0.30" = 3.30+.5 backspace

From the above list, the backspace of stock DC is 3.56

 

Get ready to send them back - Chevy wheels have a 5 x 4-3/4" mounting bolt circle.

 

[QUOTE From the above list, the backspace of stock DC is 3.56[/QUOTE]


Have you actually measured the backspacing on an original 1967 Corvette "DC" ralley wheel? The two original 1967 "DC" ralley wheels I have on my 56, and have measured, have a 3.75" backspacing, and the set of original 1964 Corvette 15X5.5" wheels I own(original equipment on my 64 Vette), and have measured, have a 3.625" backspacing.

 

I called the company and they already changed it to 4.75". I was measuring from center of stud to the fartherest one across from it instead of to the line where the circle is!! This is what is great about this forum!! Thanks!

 

My '64 had DC wheels with 235/70/15 and they fit within the wheel wells with no rubbing. Still have the wheels sitting around.

 

Hello. I have a 67 with bolt on rims but no spare. I have been looking for a rim to use for a spare but found the "DC" rim new or used too expensive. I don't need the rally wheel, I just want a plain steel rim to put under the car. What other model and year Chev cars will have the 15x6 rim that will fit the 1967 with the correct backspacing, which I believe is 3.5 inch? For instance will a Impala work? Camaro? Thank you.

 

'67 wheels both steel and aluminum are 15" x 6", .030" positive offset. The "width" dimension is always inside bead flange to opposite inside bead flange.

Offset is better dimension than " backspace" because with the same offset actual backspace varies slightly with bead flange thickness. These same dimension apply to the earlier KO wheels when the effects of the adapter are taken into account.

Prior C2 5.5" wheels have 0.44" positive offset, which is why published '67 track dimensions are slightly wider than previous year C2s with base wheels.

Some common replacement tire sizes like 205/75R15 and especially 215/70R-15 may not fit inside the spare tub due to both width and/or OD of the tire on a OE '67 wheel. Many other OE wheels will probably work particularly if only 5.0- 5.5" wide if offset is in the ball park, and virtually all GM five-bolt passenger car wheels of the era are on a 4.75" diameter, but you also need to be sure the hub hole is large enough for your car.

Also, if a new spare doesn't fit the tub due to OD having the tread shaved down to about half tread depth will probably do the trick.

Duke

 

Duke, thank you for the detailed information about the 67 wheel. Do you know what other Chev models used the same wheel dimensions as the 67 rally wheel? Maybe I can find a plain steel wheel with the rally dimensions for a lot less money for my spare tub. Thanks. Frank

 

I THINK any mid size GM like Chevelle.