rickjames

I need some info or link to match frame vin to car 1972 cutlass s. heres the car vin. 3g87h2r115992 . the frame vin is 6263667 S 366 then below that is 7 22 n then a notch c r .

jensenracing77

That is the frame part number and date. You will find the frame VIN on the side of the frame in 2 spots on the driver side under the door. If the body is still on the frame you will not likely find the VIN.

There is a good post about it with pictures by 2blu442 but i can not find it.

jensenracing77

One stamping is in line with the door handle (or close to) on the driver side. The other is close to the door hinge area on the driver side.

Allan R

Here you go. VIN stampings on frame

rickjames

rickjames

Thanks for reply however it did help . I know which vin is frame . I need to know how to match it up with the car . I want to make sure its original frame .

Allan R

you match the VIN derivative on the frame to the same VIN derivative on the engine block. Do you know how to identify the derivative component? It's there in that link I posted earlier. VIN derivative is based on the actual VIN of the car.

joe_padavano

To expand on Allan's post, the VIN derivative stamp is used on the frame, engine block, and trans case. All three have the same nine character format. The first character of the VIN derivative will match the first character of the car's VIN (and will always be a "3" for an Oldsmobile). The last eight characters of the VIN derivative will match the last eight of the car's VIN. These last eight will have the model year ("2" for a 1972 car), assembly plant, and six digit sequence number.

For your particular car, the matching VIN derivative on the block, trans, and frame would be 32R115992.

rickjames

rickjames

If thats true than tell me how to decipher the vin on the frame . So i can find what year make and model since according to you its not original frame .

jensenracing77

Again, That is not the frame VIN in your original post.

joe_padavano

One more time. The VIN derivative on the frame will be NINE characters long, and unless the frame came from a Canadian-built car, the third character will be a letter. Nothing you've posted has that form, so nothing you've posted is the frame VIN derivative. Keep looking.

joe_padavano

Also, the frame VIN derivative is USUALLY (but not always) on the top flange of the frame rail, facing the body. It can't be read without a mirror, if then even.

jensenracing77

Joe, All 69-72 frames I seen (dozens of them) are on the side close to the top. I don't know about 68 but I think it is 67 and older that it is on the top side.

Allan R

Really easy. Remember we're talking about the VIN derivative and not the frame number, ok?

Your VIN is 3g87h2r115992

So the VIN derivative is 32R115992 (as Joe already mentioned). What does this mean? I'll break it down for you 2 ways.

The VIN 3g87h2r115992 is broken down as
3 - Oldsmobile
G - Model - Cutlass S
87 - Body Style - 2 door hardtop coupe (also called Holiday Coupe)
H - Engine code - 350 2bbl 160 hp V8
2 - 1972 model production
R - Arlington TX production
115992 - Build sequence at Arlington TX Assembly line

The VIN derivative 32R115992 simply matches the engine/trans/frame to the original build. It means this:
3 - Oldsmobile
2 - 1972 model production
R - Arlington TX Assembly
115992 - production sequence to match car build.

This is basic Oldsmobile rocket science 101.

As others have mentioned, the numbers above are not the frame VIN. They are production numbers used by Arlington Assembly and stamped into the frame when it was on the jig being assembled. All frames basically have a production number. The other numbers associated with that are internal as far as I know, the 7 22 is likely the date the frame was assembled. Don't get hung up on this. It's a lot like the Fisher Body tag on your car indicating a body number that doesn't include your VIN either. It's just numbers the factories assigned to make various components.

You're going to find lots of other parts that are period correct with CFD numbers, or stampings that match production, but won't have VIN #'s on them either.