Also, In 1968 the block matches the sequence number on the fender tag NOT the vin correct ?
Same goes for the body numbers stamped in the radiator support / trunk lip ?

It also shows the B body 440 having the 22 inch. So could or should can be looked at as either or. That is someones spread sheet. The factory manual shows it but makes no mention of transmission. Unless that radiator was made with the cooler and sold in either application.

Just as Andy F said ... Even without a fender tag or a build sheet I would check to see if the stamping on the trunk lip matches the radiator support number.

The number on my original '68 RR from Lynch Road A8R279740 on both the radiator support and he trunk lip

A = Lynch Road built
8 = model year
R = body style (Belvedere)
279740 = Shipping Order #

The location of the radiator support frame should be upside down facing the engine and stamped near the area of the upper radiator hose.

If that number matches the stamped number on the trunk lid stamped on the drivers side under the rubber weather strip then it came with a 22' radiator.

Now if the radiator support or the drivers side fender have been replace....it remains a question

Just my $.02

so much misinformation

the 1968 model year hi-performance engines & transmissions were STAMPED with the last 8-digits of the VIN - 340 - 440HP - HEMI & Road Runner/Super Bee 383s

NO Chrysler Corp. engines were ever factory stamped with the shipping order number

This wasn’t possible, right? 440 4 speed got Dana and a 26 always I thought. No fender tag or sheet present to see anything.

so much misinformation

the GTX isn't a full-size model
the 4-speed manual was NOT available in a C-body with a 440

What mis-information? Never said the GTX was a full size model. I only stated the parts manual showed a 22 inch core part number 2898063 with a full size C-Body cars with a 440 as an example. I also never said there was a 4 speed in a c-body. I reaffirmed what the parts manual said about the B-body with a 440 taking a 22 inch core part number 2949053. So where is the mis-information??

I think looking at the options combination you could get a 440, with torqueflight non sure grip rear end, and that would get you the 22" radiator. Its not common, but they pop up every so often. Once you add a four speed to the 375 HP 440 or to the 426 Hemi, you get a performance package option (Trak Pak or Super Trak Pak) and that gets you a 26" radiator.

For the record, a 4-speed manual transmission WAS available in a C-body with a 440.

for the '68-'70 GTX, Coronet R/T & Charger R/T - the 440HP engine * 727 automatic transmission * 22" radiator - is the most common built combination

I think looking at the options combination you could get a 44, with torqueflight non sure grip rear end, and that would get you the 22" radiator. Its not common, but they pop up every so often. Once you add a four speed to the 375 HP 440 or to the 426 Hemi, you get a performance package option (Trak Pak or Super Trak Pak) and that gets you a 26" radiator.

The opening in the floor pan above does not look stock to me. The four speed opening was stamped. The hump goes over the opening with about 1/2" to 1" of additional coverage over the opening. The hump is stich welded from the inside of the car in about 6 to eight places with about 2" long welds.

All of this is assuming you are talking about 68 and 69 B-bodies.

For the record, a 4-speed manual transmission WAS available in a C-body with a 440.

I've seen several 440 4 speed cars with 8 3/4 rears with 3.23 ratio, I think all the Hemi 4 speed cars came with Dana 60 only, 3.54 or 4.10 ratio while the 440 4 speed cars could have come with the 8 3/4 with the 3.23, 3.55, 3.91 and maybe 4.11 ratio

it's is simply not the way they came from the factory -
bring evidence of one 440-4 speed- 8 3/4" car (non-'66 c-body)
bring evidence of one 440-4 speed- 22" radiator car

Not a 440 but my friend's 71 Super Bee was a 383 22" radiator 4 speed dana.