Alum vs Steel Drum

[ZenzenRacing]

Yep, got the same answer when I called. Anyone have one they want to sell?

[Bob Mulry]

Just some info................

I was told by Marv Ripes from A-1 about 40 years ago to NEVER, NEVER, NEVER shift into Low Gear with the car moving.....

Over the years I have built a lot of Power-Glides and I always tell the driver to never shift into Low Gear with the car moving......

There is no dynamic load on the band during apply so there will be no marks on the drum from the band stopping it's rotation....

It's easy to see on a freshen who listened and who didn't......

One more thing is to use only Teflon type rings on the aluminum drums to keep from scoring the bore....

Hope this will lengthen the life of your drums,
Bob

PS:

While I am at it:

I see a lot of drivers with 3 speed A/T's while rolling backward in reverse rather than step on the brake and bring the car to a complete stop they just put it into Low Gear and drive away.........

The only trouble with that you take a static apply clutch pack (the forward clutch) and turn it into a dynamic clutch pack and that is not what it is designed to do.....

We beat up on our parts with horsepower that the factory did not have in mind when they designed them, so anything that we can do to reduce the wear and tear will end up as extra life....