I have a '70 A727 that is original to a 340 and still installed in the car. Need to know if anyone knows if it came with 3 or 4 planetary pinion gears. I know the big block 727's came with 4.
I have a '70 A727 that is original to a 340 and still installed in the car. Need to know if anyone knows if it came with 3 or 4 planetary pinion gears. I know the big block 727's came with 4.
Are your tranmissions 60's-early 70's era before Big Brother?I have several BB 727 transmissions and all have 3 planetary gears. I believe it to be Hemi and Motorhome transmissions had the 4 planetary sets. Could be wrong, but that is my experience.
I definitely want a 4 pinion one. Will go on the hunt. Thanks for the replies!I found this in a discussion on rebuilding a 727
. The large cast-alloy pan holds more fluid and bridges the open section of the transmission case to provide extra strength. The front planetary gearsets in small-block Torqueflites are three-pinion gearsets, while the big-block version has stronger four-pinion front planetaries.
Three- and four-pinion types are directly interchangeable. A four-pinion planetary handles about 33 percent more torque than the three-pinion version
I definitely want a 4 pinion one. Will go on the hunt. Thanks for the replies!
Are your tranmissions 60's-early 70's era before Big Brother?
No, still in the car. Have a different engine coming soon, so want to pull the tranny and have it gone thru to ensure it has the beef I need.Have you gotten yours apart yet?
I definitely want a 4 pinion one. Will go on the hunt. Thanks for the replies!
No, still in the car. Have a different engine coming soon, so want to pull the tranny and have it gone thru to ensure it has the beef I need.
We're just throwing things out there, no one is saying it's gospel. Just communicating.You may possibly already have one. I wouldn't take everything on here as gospel. 340 stuff was known to be more heavy duty.
Ugh. Certainly could go top shelf but would need some deep pockets!!!A buddy blew his on his 70 Bee 727. He replaced it with a billet one and a bolt in sprag.
Thanks guys. The proof will be in the teardown! Onward!We're just throwing things out there, no one is saying it's gospel. Just communicating.
I wonder which sun gear the 5 pinion planetary set uses?
5 planet is aftermarket. I don't think they were ever used in production.I know of 3 planets and 4 planets....what used 5?
We're just throwing things out there, no one is saying it's gospel. Just communicating.
Diesel 47-48 re used 5-6. They fit a 727.I know of 3 planets and 4 planets....what used 5?
I have a 4 pinion planetary carrier out of a 6 BBL RR car 727 TorqueFlite. It also has a larger 2nd gear clutch drum* (2nd is a band, but the drum also houses the 3rd speed clutch) so I call it a clutch drum. Anyway it's bigger but my trans guy says the double wrap band on the smaller drum is all he thinks is necessary. I believe a 727 is a 727 is a 727 regardless of having an "A" bell or a Slant 6 bell, it's a 727. So you can stuff it with anything a 727 takes. I have heard there is also a 5 pinion planetary carrier as well, but I believe it's aftermarket, as I never heard of one stock.(I lived thru that era, I'm 72) But if you really want to know, get with someone who runs in the 1968 only HEMI A Body class, they are using 904 parts! I ain't too sure of the name of that class, but they only allow the 1968 Dart and Barracuda. Something like: The Hemi Challenge, or SS/AH cars, or Nostalgia Super Stock. I've seen them several times but I'm getting old and cannot remember exactly what they are called. They are ALL HEMI, and ALL TORQUEFLITE and only 1968 Darts & Barracudas. Hope this helps.I have a '70 A727 that is original to a 340 and still installed in the car. Need to know if anyone knows if it came with 3 or 4 planetary pinion gears. I know the big block 727's came with 4.