WOW!!! I am amazed at the engineering that went into the design of this transmission considering that it was designed in the 1930s!!! What they built was a mechanical analog computer powered by hydraulics!

One of the best instructional videos I've seen to date, John Dodds is a folk hero.

Sincere thanks for saving this knowledge on KZfaq. It is just so valuable for people like me.

Thank you all so much for this video, it is very helpful to see such a wonderful hands on how to. Beautiful family!

I’m not an old car owner but this video is good for my brain. Muchas gracias!

John, you are a true master. I have much respect for you and your work.

Excellent video. Thank you!

Thank you for an incredibly useful video 😎👍... same box as my 52' Cadillac 👍

Thanks for the vid. It helps with my 50 pontiac.

Good Job

Same trans built to race by B&M Trans in California in the 50s and 60s Visited them on field trip in 63 Lots of memories LA was a deferent place then

Very nice John ! If you are interested there is a great series at Weber Auto by prof. John Kelly ! Just scroll down and there will be about 4 or 5 vids . Cheers !

My father's '53 Chieftain had a transmission leak. The front seal was bad. He told me it had to be replaced twice, but after that, it didn't leak anymore.

Hola John Dogg, Tengo 2 transmiciones 1954 y 1955 oldmobile Hydra-Matic, nesesitan ser reparadas, me qustaria saver si usted podria aser ese trabajo para mi?

Awesome ! So technically I can use this video tutor to rebuild mine and everything will be exactly the Same? You should know if its off in anyway I'll be lost. This will be my first attempt to rebuild a transmission of any nature. As long as it's exactly like your excellent video I think I can do it except I don't have a few tools I noticed you used. Also knowing I plan to change everything possible in it can you recommend the best full kit supplier that I can order a complete kit from?

Nice work. Hablas muy bien el español John

Thanks John great work you have obviously done quite a few hydro- matics. I am assembling one from my 1953 Lincoln and can not get any end play on the imput shaft. Did you say that is normal?

Great work John. A couple of questions, you do add a ball bearing to the clutch springs, do they have an specific diameter? Does the spring you change come from which transmission model? Thanks

Thanks John. Did they vary from year to year or was the engineering that good from the beginning? Also, looking to import a 48 Olds to Aust - is there any asbestos in the clutch discs?

That was great! So for your next video grab a 1952 Pontiac Chieftain hydromatic and show me how to rebuild mine please :).

Do you carry kits for 54 cadillac

Crikey! So jealous of your memory. What year is this box?

Esta usted en EE.UU?

Is this the same as a 1956 Oldsmobile jetaway???

Okay? Okay? No, no, no! Okay? Okay? No, no, no.... The giant question of the century, "How man are there, eight?" We have a giant mismatch of two people on two different planets.

Dynaflows please

Flat head 8 4.4 ltr

I have an 1953 Oldsmobile Hydramatic to rebuild, where can I get a complete rebuild kit? Your videos will come in usefull. Thanks for the upload