a 833 conversion

I too have the long tailshaft A833OD from an 81 D100 in my 68 Barracuda. The boss on the front mount did not touch the torsion bar cross member in a static position but it was real close, approx 1/16" of an inch and it did touch when the engine was running and moving in the mounts. I cut the boss off but you could dent the cross member for clerance.

The adapter plate to reposition the shifter was quite easy to fabricate. BigBlockDart.com has a dimensioned drawing. The local drive shaft shop charged me $75 to cut and balance the drive shaft and that included new u-joints too.

If you already have the long tail shaft tranny I wouldn't go through the bother or expense of converting, it won't buy you anything. To convert to a non OD would require a complete new gear set, might as well just find a complete tranny.

As far as the OD not being as strong as the non OD, its not, but I have been driving my car hard since 2005 with a 370 HP 360 (~35k miles) and the tranny is holding up fine. There are folks with them behind 440's and they hold up as long as you are abusing them.