1967 Convert 327/350 3.36 non-posi

[Jason H.]

I just picked up what appears to be a very original, very low option 1967 convertible. Has POP, engine and transmission have matching numbers and today we dropped the tank and found tank sticker! The car itself has a strange option list: L79, M20, auxiliary hard top and tinted windshield...no posi, no ps, no pb, no a/c. Marina blue, brt blue vinyl, and black top. Does anyone know how rare it is to have a L79 convertible with a non-posi 3.36 rear?

Jay

[Gene M.]

Re: Question-1967 Convert 327/350 3.36 non-posi

If nothing was specified the 3.36 open rear end is what ya got.

It is just too easy to break a one wheel drive loose in normal driving. I would add a posi unit and just drive it.

[Bill L.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Great find!!!

It is getting harder and harder to find a small block motor '67 that has not morphed into who knows what!!! (same for the other mid-years)

My opinion --- DON'T CHANGE A THING!!!! the originality and matching set up to the tank sticker is worth its weight in gold ----

Seems like the first thing people do these days is start messing with an original car to "make it better" ---- I assume this is not a daily driver Right?? RIGHT!!! so maintain it as it is ----

I am sitting on a '67 base motor 4-speed coupe with a 3.08 rear end --- and it is staying that way !!! Drives great by the way!!! --- and I have the original tank sticker ----

Regards
Bill

[Paul D.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Unless you have plans for some fairly spirited driving, I doubt you will miss the posi. For a pleasure/show car, that's one less thing to have to maintain. As for rarity, probably less rare than the 3 speed but just as desirable. Since it was how the car was ordered and delivered and you have documentation, I would leave it as is. Chip.

[Lawrence S.]

Re: Question-1967 Convert 327/350 3.36 non-posi

I agree with Chip. Leave it as is. You probably will not miss the posi except on spirited driving around a corner or quick starts off the line. I would guess mildly rare but I have heard of others.

Lawrence

[Jason H.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Thanks for all of the replies. Definitely going to leave it "as is" due to having the POP, tank sticker and a folder of receipts from the original owner.

[Joe R.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Jason,

Great find and a beautiful 67 Corvette. Yes, leave it like it is regarding the 3.36 non posi. You won't ever need it anyway for enjoying the ride.

JR

PS. Please take that shift ball and throw it as far as you can into the ocean!

[John D.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Very nice car. I agree with those that say don't change a thing. Someone forgot to check a box when ordering it back in the day i think.
My 67 has L79, M20 and 3:36 (posi) and it's great for all around driving.

[Timothy B.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Jason,

That looks just like my 67 and it's a early car also, mine was built Sept. 23, 66. Great find!!

If you ever have the beauty rings off let me know if the rally wheels are stamped DC or B at the valve stem hole.

[Richard M.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Jason, Very nice find. Congrats.

Is it my eyes, or do I see a big block hood?

Rich

[Jason H.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Jason,

Great find and a beautiful 67 Corvette. Yes, leave it like it is regarding the 3.36 non posi. You won't ever need it anyway for enjoying the ride.

JR

PS. Please take that shift ball and throw it as far as you can into the ocean!

I know, right? One of the first things I did once the car got into my garage was find the stock shifter ball!!

[Jason H.]

Re: Question-1967 Convert 327/350 3.36 non-posi

Jason, Very nice find. Congrats.

Is it my eyes, or do I see a big block hood?

Rich

Your eyes are good Rich. It has a big block hood (original-pressed glass), so I am guessing the original owner put it on there very early in its life.

[Joe R.]

Re: Question-1967 Convert 327/350 3.36 non-posi

I know, right? One of the first things I did once the car got into my garage was find the stock shifter ball!!

Thanks Jason, my heart is at ease now!

JR

[Duke W.]

Re: 1967 Convert 327/350 3.36 non-posi

It's unusual that an optional SHP engine would be ordered without Positraction. Maybe it was ordered by a dealer employee for stock and the guy didn't know much about Corvettes. It was only a 42 dollar option, and about 90 percent of '67s were so equipped.

One advantage of having an open diff. is that there are no clutches to wear, which causes the axle to get sloppy over the miles due to increasing differential gear backlash, which also causes high side yoke end play, but it will be difficult to accelerate hard out of tight corners without spinning the inside rear tire.

As stated earlier, if you don't drive it aggressively, you may not notice.

Duke

[Tom B.]

Re: 1967 Convert 327/350 3.36 non-posi

That's a great find.

Tom