Re: ‘49 22nd bumper jack

Posted by DavidPackard On 2021/5/9 21:42:04

Dell is correct.

The square tube post with the cone to keep the jack aligned with the bumper is associated with 22nd & 23rd senior cars.

The 'Vee' shaped post with the alignment feature formed in the sheet metal is associated with 22nd & 23rd junior cars.

For Packard, the 'Tee' shaped post came later, but yours seems not to be a Packard jack because I didn't see the removable piece that fits the bumper.

Having said that I'm sure if you asked the salesman politely he/she would throw-in the 'vastly superior' senior jack. I'm not all that sure the square tubing design is in fact superior or stronger. I see one failure mode as deflection of the structure where the teeth are formed. My eye tells me the 'Vee' design would not deflect as much in the area of the teeth.

As a long thin column I think the square tube will carry more load, but that's my eye talking. The senior cars are likely heavier, but I can't believe anyone played that close to a safety factor of one.

At any rate we all think they're unsafe and can be displayed with pride, but not used to jack the car high enough to remove a wheel.

If your car is a junior the 'Vee' design has a higher probability of being correct. I'm surprised the markings are not visible.

dp