slant 6 auto(904) to 4 speed help

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rawrods

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Ok guys I have a 833 4 speed that I would like to go ahead and put behind my slant 6. My car is a 70 duster and I wanted to know what bellhousing to use? Ive looked up some info but as soon as I think I have it right I find something to throw me off. Here is some info on my trans if it helps.


Number read- 1b336822 833 3378 0131
URL]


I know I need the pedal and tunnel hump to weld in.

Thank guys.
 
nope. be different, keep the slant six in. isnt being different what driving a mopar is all about anyway. shouldnt a bell housing for a 3 speed manual work?
 
well thats what i was thinking but was hoping for more help. I dont need help with what motor to run.
 
the 75+ a body slants had a 4 speed bellhousing as well as some pick-ups. the /6 bellhousing is the same as a 3 speed unit, difference is the extra holes for the 833. when i did my changeover i was lucky and found a complete 75 duster in the junkyard - grabbed everything from the flywheel to the driveshaft.

i know its for a big block, but a lot of the info is relevant
http://www.bigblockdart.com/techpages/4sptech.shtml
 
Measure the bearing retainer on the front of the transmission. If it 4.35 inches you can use the 3 speed bellhousing if it is drilled for the 833 bolt pattern (dual pattern). Most were from '68 on. Make sure that the inner surface of the bearing retainer register hole hasn't been sandblasted or doesn't get that way. If it does, the transmission to crankshaft concentricity is out the window.
 
rawrods said:
I dont need help with what motor to run.
Click to expand...

You go rawrods! Don't let V8 meatheads tell you what engine to run. There are plenty of other slanters out there. Life's not always a frickin' drag race.

Drop by slantsix.org if you ever get the chance. Cheers!
 
Nope, that one looks like it's for a small block. It does have the right pattern on the transmission side though. The one you need has the starter right around 11 o'clock.
 
The high starter BH looks like this.

There's also a low starter version for trucks.

multi-pattern-bellhousing-sm.jpg
 
Vynn, is that the larger IBR BH? I thought I saw someone over at .org had an adapter ring for sale.

Rawrods, Is that a real 4-speed or a 833OD? I'm asking b/c I see that the fork paddles both point the same way
 
Well from what I can tell its a 4 speed not a 833OD, but how can I make sure. Sorry if thats a dump question.

player1up said:
Vynn, is that the larger IBR BH? I thought I saw someone over at .org had an adapter ring for sale.

Rawrods, Is that a real 4-speed or a 833OD? I'm asking b/c I see that the fork paddles both point the same way
Click to expand...
 
Taken from slantsix.org/articles
There were three different sizes on production four speeds. There was the 5.125" dia. IBR used on the 1975 and later Overdrive units, the 4.80" dia IBR used on "Hemi" transmissions, and a 4.35" dia. IBR used on everything else.

833OD - 1975 thru 1987 Overdrive 3.09:1 - 1.67:1 - 1:1 - 0.73:1
833 4speed - has a 1.1 final ratio.

With that in mind, I'd say that if the IBR diameter is 5.125" then it's a OD unit but if someone can decode the casting number that would be definitive. May want to post in the 4-speed forum with the number....not too many of us frequent the /6 discussions :)
 
Not bad per se but your options are limited:
1. use a OD BH with an alignment ring.
2. Find a 64-66 4-speed bell - ( rare )

3. swap the trans with a OD and use a "late" model OD alum BH
 
Hmmm, well thank you for getting back to me. I'll see what I can come up with.

player1up said:
Not bad per se but your options are limited:
1. use a OD BH with an alignment ring.
2. Find a 64-66 4-speed bell - ( rare )

3. swap the trans with a OD and use a "late" model OD alum BH
Click to expand...
 
Did you get all the info you needed for this swap? I am seeing some wrong, incomplete, & correct info in this post. I have been converting and driving slant 6's with manual trannys for 25 years or so. Get with me if you still have questions.

Later,
Bruce B.
 
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