A833 overdrive V8 bellhousing?
I have a 76 duster with a 225 I just picked up and a small block waiting for me to acquire all the parts!
/6 A833s also have the smaller mainshaft that fits 904 yokes versus the V8 shafts that take the 727 yoke. Bearings are also different; 307-type on the small and 308TYPE on the v8s.
In most cases the cast-iron case will have to be clearanced for the big overdrive cluster gear.
BTW
I used the alloy overdrive case for several years behind my Hi-torque 367. Butum I installed a steel front clusterpin bushing, and thus eliminating the backlash.
The 904 yoke takes 7260 U-joints that don't take much torque to shatter.
Opinion coming
The gear ratio splits in that od box, are
IMO
lousy for a warmed up SBM
They are fine for a lo-po, low-rpm engine, or a hi-torque engine
The ratios are;
3.09-1.67-1.00-.73od, with splits of .54-.60-.73
So when you outshift first into second, the rpm falls to .54. Shifting at 2800, the Rs fall to 1512, so your engine better have some grunt down there. .. Shifting at 5600 the Rs will fall to 3024 so your cam will have to be selected for a powerband of 3024 to 5600=2576; good luck with that.
If you gear your car for use in Second gear, low gear will be borderline outrageously lo: I like Second gear to be my go-to gear, so about 6.80 overall. This makes 35mph to be 3000 rpm ready to rock with a hi-torque engine.
With the od box , 6.80 /1.67=4.10s in the back. This makes your starter gear to be 4.1 x3.09=12.67; borderline ridiculous.
My combo never liked it no matter what rear gears I ran.
Maybe you will have better luck.
Like I said, it does work well with a lo-rpm torque-monster. And you just know that with a 4.125 stroke, the 225 does really well on the bottom.
Jus my opinions.
