1951 Roadmaster Dynaflow ???

[Allen]

Hi, I have just bought a 1951 Roadmaster with a Dynaflow, It dose not shift itself, If I take of in drive it never shifts, I was told it is supposed to be this way ? Is that right ? If I start off in low I can shift it in to high, Is it OK to do this or is that what I am supposed to do ? Will this hurt it ? I am planing on putting about 1,500 miles on the car this summer and this car has been setting for a while so I was wanting to change the fluid in the trans, Dose it have a filter ? And what oil dose it take ? Is there a cooler that needs to be cleaned out ? Was this a good trans to have or should I take it very easy on it, Thanks

[charley]

back in the 50ties when I was a kid driving my daddys buick I used to shift from low to drive with the petal to the metal at 60mph. from a 15mph rolling start there wasn't many old cars that could keep up.

[Tonerman]

Yes it is ok, that is how it supposed to work. Putting the car in low will hold it to a lower "range" but Dynaflows don't "shift" perse. They have variable vanes in the torque converter. Think of it as a kinda CVT. You don't need to shift just put it in drive and go. Now if you need some engine braking down long hills then of course drop it into low.