NawlinsRiviera

Ed & Jim, Thanks for your good advice. I think I will stay with the Dynaflow and keep the car close to its original specs. I don't want to start a major rebuild of the engine, drive shaft...etc. just to get a little more acceleration and less fluid on my garage floor. Regarding the leak, what should I look at first before going to a transmission shop? From what I can tell, it looks like it is leaking from the front of the tranny. The gaskets are all cork (the previous owner stated this). I drive the car weekly so the gaskets should be well lubricated. Any comments or advice would be greatly appreciated. Gary

Thanks for your quick responses. I would like to keep the Dynaflow but want the performance of a newer tranny. Also, there seems to be fewer transmission shops working on Dynaflows in my area(New Orleans if you haven't figured that out yet). I am looking at the long term for future maintenance issues and parts availability. Tim63Riv - Where can I get a THM 400, what additional changes as far as...linkage requirements, possible drive shaft change, console shifter change...etc. do I need to look at? I don't mind spending a few bucks but within reason. I would like to hear from somebody who has made a swap and reply with their experience...good or bad. I am open to "diehard" Dynaflow readers who can convince me to keep the tranny I have. My car is more of a weekend driver, not a show car. Thanks again for your replys! Gary

I own a 1963 Riviera. I bought it about two years ago and I am very happy with the car. My only problem has been a slow leak from the Dynaflow transmission. I met with the owner of a very reputable transmission shop who specializes in classic cars and he said the minimum cost to look at the cause of the leak would be $2000. He said that he would recommend a rebuild since he was going to drop the tranny from the car. I have met with a '64 Riviera owner who lives close by. He has a Turbo 400 in his Riveria and is looking to upgrade. He is willing to sell me his tranny for $600. He said that he read an article online which stated this swap was possible but that there was a small lever on the crank which needed to be removed. Removing this lever would require balancing the crank afterward. This seems like a lot of trouble. I rode in his '64 Riviera and noticed a big difference in acceleration with the Turbo 400 tranny. As you know the Dynaflow is a smoother but slower launch. I would like some advice on this matter or possibly other alternatives. Gary