Master Cylinder stamped SA

[big iron]

My 10-1-69 P&A has a listing for 67 Chevelle w/Disc Brakes, 67-69 Pass. Camaro w/Disc Brakes ....5469489  (11/8" dia. cyl.) (stamped SA).
I know the 67-68 MC's are stamped WT but was this the early 69 MC before it was  updated to the 5463751 and 309 casting stamped US?
Bob

[ZLP955]

Bob from the wording in the CRG Chassis section brake article:

1967 and 1968 power disc brake cars used the 5460346 master cylinder. Early 1969 disc brake cars also used the 5460346 master cylinder (for about a month or so of production) with later 69 cars using the 5468309 casting.

I took that to mean that the early 69 cars also used the 'WT' stamped master until the switch to 309/US, but maybe that's not a correct interpretation?

[VINCE Z28]

Here is a 69 Camaro LA 09D 68 with the 309 master.

[big iron]

Wow 4th week of Aug. Is it stamped US?
Bob

[VINCE Z28]

No, 4th week of September and I believe it is US, don't have the car any more.

[KurtS]

Bob from the wording in the CRG Chassis section brake article:

1967 and 1968 power disc brake cars used the 5460346 master cylinder. Early 1969 disc brake cars also used the 5460346 master cylinder (for about a month or so of production) with later 69 cars using the 5468309 casting.

I took that to mean that the early 69 cars also used the 'WT' stamped master until the switch to 309/US, but maybe that's not a correct interpretation?

Nope, that's not what it says. It only mentions casting numbers.
The application codes were by model year.

[ZLP955]

Thanks Kurt. So did the early-built cars get a 346 master stamped 'US'?

[KurtS]

Yes, that why I wrote: The application codes were by model year.