well I really don't know what the wheel from your junk cuda has to do with an e body booster , but I can tell you that out of four 71 cuda's I have had or still have came with a booster the same as the 1970 booster and the that I have seen similar to the one pictured belonged to the 72-73 and I assume 74 cuda's . I have not z1worked on any 74's that I can remember , however had many of 70-73 in shop over the years. but don't really care to argue about it , just my past experience thought could help the guy out. good luck
Lol. I don’t have a clue why I put this in the wrong thread.
However, back to the topic at hand. I would imagine that the parts changeover from 70 to 71 was varied. The 71 challenger RT that my son has was built in 5/71 (per door sticker). It has the midland ross.
I have the brakes from a 71 barracuda and it has the same booster dated 173 0. The build date per build sheet is 8-14. It also had the 70 model seats with the pot metal hinge covers and the wide mouth calipers dated 048 0 and 055 0. I’m pretty sure these parts were original and installed on the car from the factory. I parted the car out in the mid 70’s.
The NOS boosters I have the part no 3461360 and is dated on the tag 025 0. It’s listed for 71 b and e in the parts book. The other two I have are two of the original three I bought all the same. They are still boxed in Mopar boxes part no 3579272 listed to fit all b and e, 71, except 426. The are also listed to fit 1971 340 w/3-2 Carb. A additional boosters are listed for a 70 model 340 w 3-2 Carb and all other engines expect Hemi. The date tags for these boosters are 299-1 and 074-2. They may be good numbers for 72 up cars but I don’t have the book for that.
Mopar used what they to get cars out the door and people changed stuff through the years on these cars. These NOS booster are made to fit a car that never existed and both have a special note in the box the change the check valve if used on a TA car.