ALUM front drum "chat" ...

[DocFiberglass]

Some time ago I picked up a real nice - never used - 727 drum.

BUTTT ..there are two issues that concern me. This is the type of drum that does NOT have the steel? insert in the area that the sealing rings and bushing is.

Is there any way to modify that piece to be able to accept this insert(at a reasonable fee) OR are there sealing rings that will NOT wear into the raw aluminum ?

My application will be a front engine dragster that I plan on using at some of these high-dollar footbrake bracket races.

 

[bOb shingler]

on e-bay there is a comany called torqueflite patty and he has teflon rings. i just purchased a pair from him.

 

[DocFiberglass]

I am familiar with him .... so you have the same drum as I do? ..what band are you going to use? ..what apply lever?

 

[bOb shingler]

i have a hard hemi band and o 5.0 lever.

 

[340mopar]

A 727 in a FED will definately take up some leg room. It may also be a handful with the 2.45 first gear. Wheelstands are a distinct possibility.


Chuck

 

[DocFiberglass]

i have a hard hemi band and o 5.0 lever.

Is your drum the real wide one? .. how many clutches? ...mine is like the standard 4 clutch unit - there is no way I could use a hemi band unless I cut one ring off it.

 

[DocFiberglass]

A 727 in a FED will definately take up some leg room. It may also be a handful with the 2.45 first gear. Wheelstands are a distinct possibility.


Chuck

Leg room ? ... and I am going to use a shortly tail housing toooo ! .... but maintaining my legs is why I decided to use an alum drum. I have never had a trans come apart ... but I have been told that there is NO WAY a trans CAN come-apart(blow-up) because of a failed sprag.

Anyone know of anything diff ?

 

[fishy68]

I have never had a trans come apart ... but I have been told that there is NO WAY a trans CAN come-apart(blow-up) because of a failed sprag.

Anyone know of anything diff ?

Check out this link to a sticky on this very transmission page at the top authored by Chris Andrews who is very knowledgeable on torqueflites. Got some real neat pix of a gernaded 727. Luckily the driver escaped injury.

http://www.forabodiesonly.com/mopar/showthread.php?t=2167

 

[DocFiberglass]

NO luck on that link ....

But isn't 99% or more of the explosions that of the stock drum ....coming apart after being spun 2.5 times engine speed?

Now I hear that the alum drums are safely tested up to 16,000 rpm. If this is true -- then I guess that most if not all of us are safe here .. !!! ..??

 

[340mopar]

Yes, it is the stock drum that explodes if it is over spun. The reason it does this is because the overrun clutch (sprag) fails so whoever told you that a failed overrun clutch won't cause a tranny to explode doesn't know 727's.

Chuck

 

[fishy68]

NO luck on that link ....

Hum that's odd. It works for me. Try it again and if it don't work just go to the top of this page where all the threads are listed and it's the very first thread entitled "Exploding Torqueflites". It's a sticky thread so it allways stays up there at the top.

 

[bOb shingler]

Is your drum the real wide one? .. how many clutches? ...mine is like the standard 4 clutch unit - there is no way I could use a hemi band unless I cut one ring off it.

i just checked the aluminum drum width and it's the same as the hemi band. at the moment i don't have the time to see how many clutches fit in it but it should take 5, and 6 with my special cut pressure plate.

 

[moper]

I dont know of any aluminum or billet steel drums that are not made for Hemi bands and more clutches. there may be some, just none I've ever heard of...