Have people been known to swap a 6 speed drum for a 5 speed drum in a 6 speed allison for any reason at all??
The question involves an 1100 horse dmax.
The question involves an 1100 horse dmax.
5 speed drum in a 6 speed??
- Thread starter mike diesel
- Start date
Normally you would look to put a 6 speed drum in place of a 5 speed, especially in a bigger power build, not the other way around.
The 6 speed drum is a better design than the 5 speed. Among other things, the 6 speed design more evenly applies pressure to the c1 and c2 clutches.
It wouldn't be the first time a 5 speed drum ended up in a 6 speed. 5 speed drums have their place even in high HP applications..
Yes, my buddy tore his 6 speed down last night that was built about 3 years ago....he found a 5 speed drum in place of the 6 speed drum. There was a whole lot of confusion after that..
The trans was torn down Initially because it would hang gears really bad. You could count 3 seconds between shifts on a good day. His 1082 horse tune could muster up solid 12.5's in the quarter mile. Doesn't matter what you did to the tuning, it just wouldn't shift. So finally he said tear it down.
The trans was torn down Initially because it would hang gears really bad. You could count 3 seconds between shifts on a good day. His 1082 horse tune could muster up solid 12.5's in the quarter mile. Doesn't matter what you did to the tuning, it just wouldn't shift. So finally he said tear it down.
I'm sure you can guess judging by my location
Yep :thumb: What did you guys find wrong when you took it apart?
I remember Reece working with Big Dipper when he was having his trans. issues. I think George sent him a modified 5 speed drum instead of the 6- speed drum? It's been a while so I may not be remembering correctly.
From things I've seen here in "prebuilt" units, most places will throw one together with everything except the bell housing and valve body and then throw those in to fit the truck it's ordered for. As Evan said 5 speed drums can be built up to handle high hp and there is nothing wrong about it being done, just not what many of us would do. I have had guys total or sell their 5 speed truck and want their built 5 speed trans swapped into their new 6 speed truck for as cheap as possible, that's the only time I can think of a "5 speed drum going in a 6 speed" - but it was actually a 5 speed being converted to a 6 and swapped in a new truck.
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Properly setup 5 speed drum can have less tie up on the 3/4 shift. It will also live through bad tuning better than a 6 speed drum if set up right.
This truck was dropped off bone stock and picked up fully built. Motor, triple turbos and trans. All we know is that it was a perfect condition 6 speed when he dropped it off. No clue what happened in the mean time.
