Road Runner Nest

There are a few old threads here on this forum addressing the ’72 v21 & v25 issue, do a search. Appears the v25 code was not included in the fender tag on RMs with N96. Satellites showed both codes.

In my experience the V21/V25 coding wasn't dependent on N96 but instead varied by build plant. A Windsor car (R is the 7th digit in the VIN) typically has different coding "quirks" than other plants and this is no different. All V21/V25 Windsor built cars I've come across were only coded V21 on the tag.

I have my complete build sheet in good condition. Just luck, but I removed it and kept it with the window sticker when I bought the car new. (found two other build sheets in my car too)

It has a build date of June 20, 1972 which from what I understand is pretty late in the year. (the casting numbers on the block are actually 1973 numbers, but the date stamp cast into them is 5/31) I was told the first thing to convert to next year models is the foundry that casts things like blocks & heads due to long lead times. Don't know if this is true or urban legend but it makes sense as to how an obviously 1972 car had 1973 block casting numbers on it.

The last vin numbers are 214743. I have in my notes the numbers start with 100001 each year, so I assume mine was the 14,743 built.

If you match your numbers with this, It might give you and idea when your car might have been built.

Being the one and only owner of this car makes me absolutely certain of what has been done with it since it rolled off the assembly line.

72Rdrnner wrote:I have my complete build sheet in good condition. Just luck, but I removed it and kept it with the window sticker when I bought the car new. (found two other build sheets in my car too)

It has a build date of June 20, 1972 which from what I understand is pretty late in the year. (the casting numbers on the block are actually 1973 numbers, but the date stamp cast into them is 5/31) I was told the first thing to convert to next year models is the foundry that casts things like blocks & heads due to long lead times. Don't know if this is true or urban legend but it makes sense as to how an obviously 1972 car had 1973 block casting numbers on it.

The last vin numbers are 214743. I have in my notes the numbers start with 100001 each year, so I assume mine was the 14,743 built.

If you match your numbers with this, It might give you and idea when your car might have been built.

Being the one and only owner of this car makes me absolutely certain of what has been done with it since it rolled off the assembly line.

Good info. But my casting numbers indicate 1974 casting. So that would still not match the one year ahead line of thinking in your example.

If the VINs start with 100001, wouldn't yours be the 114,743rd built as opposed to the 14,743rd one built? I assume this is all Chrysler production since there were only 7600 or so RRs built that year, correct?

csilko wrote: Good info. But my casting numbers indicate 1974 casting. So that would still not match the one year ahead line of thinking in your example.
If the VINs start with 100001, wouldn't yours be the 114,743rd built as opposed to the 14,743rd one built? I assume this is all Chrysler production since there were only 7600 or so RRs built that year, correct?

Yes, each Assembly plant usually started at 100001, and each car went up from there whether it was a Road Runner, Duster, Satellite, etc.