65 correct jack

[Blake W.]

How can I tell if I have the correct jack or repro for my 65? I looked at the LICS catalog and they list a type 1 jack up to Vin 12000 of '65. My vin is 111510. so type 1?? The reason I ask is that a car friend of mine says he came across an original 65 jack and asked if I was interested. Need to verify mine (and his) for originality first. Are they dated? What else do I look for?

thanks, Blake

[Jack H.]

Re: 65 correct jack

Jacks weren't dated until 1967. Judges tell the difference between Type I, II, and III by looking at their construction.

In '65, the Type II jack was used for such a SHORT period of time, I always wonder why it was reproduced? Given then big unknown of how much inventory was on hand at the factory when a given running change was made, it's conceivable for the Type I to overlap with the Type III.

In other words, a judge would be hard pressed to actually prove that a given car HAD to have shipped with a Type II jack in it...

So, how do YOU tell if a given jack is a Type I, II, or III? First, read the descriptive text of the Judging Guide to make sure you're looking at a Corvette jack vs. a similar jack from a Corvair, Etc.

Now look at the bearing adjacent to the hex lug that drives the lead screw. Is it a THICK ball bearing assy or a thin/cheap pair of washers separated by an acetal plastic disk? The former represents the Type I, II construction while the later is the cost reduction that was used by the Type III jack.

OK, so it's got the real McCoy ball bearing construction. Now, what's the difference between Type I and Type II?

If memory serves it's the depth of the hex the drive nut (short = early; long= late) and whether or not the side bars forming the sissor assy are basic flat stamped steel (early) or reinforced with gussets (late).

Bottom line here, unless your friend's jack is either VERY cheap or in GREAT condition, I question why you wouldn't just go purchase a reproduction jack... Most used original jacks sell for a CONSIDERABLE amount.

Then, once you've got one, putting it back to factory new condition (remove ALL of the rust and associated pit) to get full credit on condition during judging is a Herculean effort! My take is buy the repro jack, take the minor deduction on originality, get full condition credit you get, and put your time/$$$ savings in the bank for some other critical restoration aspect...

[Tom H.]

Re: 65 correct jack

Here is a real type 1.

[Blake W.]

Re: 65 correct jack

Thanks guys, Mine looks like the one in the pic. Including the bearing. Still, it may be a repro. I'm a bit suspicious of it as the paint looks too good; no evidence of rust or pitting either. Didn't get hit on judging a couple of years ago. I just would prefer to have original parts if available.

[Ronald L.]

Re: 65 correct jack

Tom, Jack,
From this discussion above.. 1966 - 67 were type III with the two washers and plastic spacer?

When did the dating start in 1967?

[Ridge K.]

Re: 65 correct jack

Tom, Jack,
From this discussion above.. 1966 - 67 were type III with the two washers and plastic spacer?

When did the dating start in 1967?

Ron, I believe the dating started in January of 1967 (info obtained from several sources).

Here's an old thread from many years ago discussing it:

https://www.forums.ncrs.org/showthread.php?t=20714&highlight=1967+jack+date

[Ronald L.]

Re: 65 correct jack

Thanks Ridge,

Are we still lookign for the Type III, non ball bearing?

[Ridge K.]

Re: 65 correct jack

Thanks Ridge,

Are we still lookign for the Type III, non ball bearing?

Ron, I will try to pull my original jack out of the shop and photograph. It's dated March of 1967. I think a picture is worth a thousand words.

Might not make it today, however. We have twenty inches of snow on the ground (3 feet drift against my shop doors), and the high just hit 19 degrees today. Will get it as soon as possible.

Ridge

[Ronald L.]

Re: 65 correct jack

Ridge, I'll trade that (snow) for the 4 degrees it was this morning!

[Ridge K.]

Re: 65 correct jack

Ridge, I'll trade that (snow) for the 4 degrees it was this morning!

Our all-time state low record was broken early this morning.
One town is saying they had -28 degrees, and another is saying they recorded -31. State officials are verifying for official state record purposes.

Tulsa's low was -12, whcih is also a new record. It's a struggle to push the dog out the door for "business"...

I'm sitting inside wondering when the global warming is hitting Oklahoma. Oh sorry, ....I forgot that it's name has been officially changed to "climate change". That "global warming" moniker just didn't seem to catch hold during these bitter winter low temps.

Ridge.

[Ronald L.]

Re: 65 correct jack

They will take the official temperature right next to the glass plant that way there will be continuing data to support gloal warming. You must be using the Celcius scale...that's cold!