Something new everyday

I discovered today that the assembly number is also stamped on the front trunk (frunk) frame of a Ferrari 308. Ferrari used the assembly numbers to ensure that parts fettled and modified for a particular chassis (which was yet unnumbered at that stage of the production) stayed with the chassis along the production line. Since there were hand built cars, many pieces such as doors and interior pieces needed small modifications to fit.

Ferrari 308 assembly numbers can be found on  interior parts

I know my car is #798 since I found that number scrawled on all sorts of interior pieces when I restored my interior (like the fibreglass door card, above). Now I see the same number stamped on the frunk frame confirming that the body and interior are original to my car which is good to know.

Ferrari 308 assembly number on frunk frame

Unless you know its there, it’s a little hard to see on my car. I had not noticed it until today when I was asked to examine another car and then checked back on mine. That car has an assembly number after mine but a serial number and production number one month earlier; meaning Scaglietti built my body first but Ferrari did not complete its assembly until well after the other car with the later chassis. Proof that there is not much correlation between assembly numbers and serial numbers.

Disclaimer: describes the restoration work I perform on my car and only my car. I am not a professional mechanic. The website content is presented for entertainment purposes only and should not by seen as any kind of advice, information, instruction or guidance for working on any other car. The opinions stated here are my own and no-one else’s.
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4 Responses

  1. Very interesting. Where is exactly the “frunk frame” ?
    There were a lot of US market car made in December 78 and I have few example with later assembly and earlier chassis number than yours (especially Japan market cars which are in the same sequence as US cars). The chassis numbers were allocated according to the orders once in a while and the allocation of the assembly number was not done at the same time or the difference over a month.

    • David says:

      Jean-Philippe, thank you for your comment.

      Frunk = Front Trunk. So where the spare wheel goes. The panel is hand-beaten aluminium which is brazed onto a steel frame. That’s what I am calling the frunk frame.

      I’m sure you know but the “frunk” is another area of the car that is different between Europe and the US. The European version has one latch where the US has two. Also the US version has additional hardware to lock the top edge against the bulkhead in case of an accident. It also has the frame drilled in a number of places to facilitate the cover as a crumple zone in an accident.

      I must admit I find the overlapping of the assembly numbers with serial numbers confusing. I don’t have a clear idea of the factory’s processes back then. If you have December cars later in assembly but with lower serial numbers doesn’t that imply that my serial number was not assigned until after December even the the cars assembly was completed in late November? Or did the factory assign serial numbers with blocks so they were not always in order out of the door?

  2. Richard says:

    What is your engine and tranny serial number? I would like to compare to my 78 308 #26355.

    My engine number is F106AE00722
    Tranny is F106AL4157

    • David says:

      Hi Richard

      My engine number is F106AE00769. I don’t have a note of my gearbox number… I’ll have crawl under the car and take a look.

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