MarcDeSoto Posted October 11, 2021 Report Posted October 11, 2021 Thanks for the link. At first I thought I'd seen this video made by Chrysler on the 41 Dodge. But this is new. It's 45 mins. long, but only about the first 9 or 10 mins. is on the Fluid Drive coupling with the M-3, M-5, and M-6 semi-auto transmissions. I always thought that the 41-42 semi-auto trans. were called the M-4, but I was just guessing. 1 Quote
Dodgeb4ya Posted October 11, 2021 Report Posted October 11, 2021 1941-1942 DeSoto/ Chrysler were the model M-4 transmission... 2 Quote
MarcDeSoto Posted October 11, 2021 Report Posted October 11, 2021 And thought this guy on the video was well informed. I guess not. I didn't know that the early Fluid Drives had a fill hole and a drain hole. How would you know which was which? And why would you need two anyway? 1 Quote
Dodgeb4ya Posted October 11, 2021 Report Posted October 11, 2021 (edited) He is very knowledgeable...but he missed the M-4 trans and FD coupling and also the later Fluid Torque Drive torque converter. AFAIK there never was a M-3 coupling. Cannot fault him at all....way too many versions of FD's and transmission combo's by mother MoPar. Edited October 11, 2021 by Dodgeb4ya 1 Quote
chrysler1941 Posted October 11, 2021 Report Posted October 11, 2021 Old news. Was posted 2 years ago Quote
chrysler1941 Posted October 11, 2021 Report Posted October 11, 2021 8 hours ago, MarcDeSoto said: And thought this guy on the video was well informed. I guess not. I didn't know that the early Fluid Drives had a fill hole and a drain hole. How would you know which was which? And why would you need two anyway? This is guy is a guru when comes to modern transmissions. Even has a 4 hour video about the first automatic transmission, Hydra-Matic. Upper hole is fill, lower is drain. You want to drain it completely. M4 where vacuum operated unlike the M5/M6 hydraulic operated. Functions exactly the same. M4 even had a cable to detach vacuum shifter for non-start towing. Quote
Art Bailey Posted October 11, 2021 Author Report Posted October 11, 2021 9 hours ago, MarcDeSoto said: And thought this guy on the video was well informed. I guess not. I didn't know that the early Fluid Drives had a fill hole and a drain hole. How would you know which was which? And why would you need two anyway? He also mentioned how Mopar "did away" with the drain plugs altogether. I'm pretty sure I noticed plugs on my '48 when I was in there... Quote
Art Bailey Posted October 11, 2021 Author Report Posted October 11, 2021 (edited) 1 hour ago, chrysler1941 said: Old news. Was posted 2 years ago Edited October 11, 2021 by ratbailey 1 Quote
MarcDeSoto Posted October 11, 2021 Report Posted October 11, 2021 8 hours ago, ratbailey said: He also mentioned how Mopar "did away" with the drain plugs altogether. I'm pretty sure I noticed plugs on my '48 when I was in there... Well they got rid of the drain plug. He didn't say they got rid of the fill plug, which would also be used for draining when you turned the engine over until the fill plug was at the bottom. That's how I drained mine. Quote
Dodgeb4ya Posted October 12, 2021 Report Posted October 12, 2021 Only one plug on 1946 and later couplings....a fill plug... .....Except FTD converters..they do have the two plugs as they can be drained for service. 1 Quote
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