I have read threads on this subject in the past about tire air pressure and owners are all over the page on this issue.
Some guys are using the max air pressure as their setting. CRAZY!
I have a 1984 Trans AM. The door sticker with the info is unreadable.
Tires from the factory were 215R65x15.
I have 245R60x15 BFG tires on my car. I run these tires at 35 lbs pressure, cold tires..
Newer vehicles, for many years, with radial tires are recommended at 35 lbs cold.
I cannot remember what the factory pressures were in a1981 Cutlass that I owned from new.
What would have been the air pressure on the door tag for 1984 & 215 tires?

 

32 to 34 is pretty typical. Certainly nothing to nitpick about...

 

 

Just what I wanted to see.
Would u also have a picture of the tag that has the date, gvwr, gawr frt & gawr rr/ Again I cannot read much of mine.
Tkx

 

I don't know how things were done in the 1980's...... but vehicles today follow tire inflation load tables set by the Tire and Rim Association, https://www.us-tra.org/

And you'll see those numbers republished by tire manufactures such as these from Toyo, https://www.toyotires.com/media/pxcj...s_20200723.pdf

Today the inflation numbers on the door tag are at the vehicle GAWR (Gross Axle Weight Rating). It's a cover your *** number. Most people aren't driving around at that weight. If you weigh the vehicle front and rear, then you'll be able to look up the minimum inflation required at that load. You probably won't need anywhere near 35 psi and will get better ride quality if you do less.

 

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And probably also better tire life.

Running tires at their full-load pressure when there's less than full load on them tends to wear out the center quickly.

When I had small tall tires like those on my car, I ran them at around 33.

 

I remember in 1970, I owned a new Chevelle. tire pressures were 26 front & 28 rear with glas belted tires.

 

Those also weren't radials. Might be worth remembering how much (little) traction you had. You might be embarrassed by the actual ETs of legendary 60s cars; and even more so by video footage of them spinning out and trying to hook back up. It was even worse, with the EXTREMELY "tight" chassis setups of the day, how poorly those cars drove around any kind of curve.

My first car was a 60 Chevy. Next was a 59 Catalina. Can't remember what I had too much after that in detail. I know I had a 63 LeMans, 64 Catalina, abuncha other such cars, can't even remember em all (I've got CRS these days). My late little bro had a 66 Caprice SS which he had put a 427 into, while my bro-in-law had a 66 Imp 327, we used to race em all the time. Same color. (pea soup metallic green) I remember one time we were "road testing" them and the back glass popped out of the Caprice. (spoiler: the small block car won, EVERY TIME, no matter who was driving) He and I had any number of 69 SS Chevelles; at one point we had a hardtop, convertible, and El Camino all in the driveway at the same time. I think between us we must have had at least a half dozen 69 Chevelle SSs; some 4-speeds, some T-400s. Ah yes my friend, those were the daze. And not just because I miss my little bro.

So yeah, I'm kinda familiar with cars from back then. And how little ANYTHING about the tires that came on them, resemble in the faintest, anything about 2024 tires, except that they were round and black and had squiggly marks around the outside.

 

WOW! I am jealous of all the great muscle cars u had.
My 1st muscle car was a 1970 Chevelle Malibu L48. This little 350 was fast and smoke a couple L35 SS Chevelles. Had that car 4 years but I was able to track the car to 1989 but then was lost. Next muscle was a 1972 Buick GS 350 (purchased in 2000 & restored over the years), Now 1984 T/A Original car.

 

For some reason, I'm thinking my Formula sticker says 30 PSI all the way around. But not at the car to look.