What's an 833 o/d from a truck worth?

But I've heard of more than one 833OD living just fine behind a 440. The one I know about in particular was in a B body that saw a decent amount of 1/4 mile time. It was eventually replaced, but it held up for years like that. In an A body that sees mostly street use and runs street tires at the track, you're unlikely to have any issues.[/QUOTE]

I'm sure we have all heard of instances where people did things and it all worked out fine, My statement was based on the experiences that I have had over the last 40 years of doing the things that people don't recommend. Back in the late 70's when they first came out we all thought "this is great" Mopar finally gives us an overdrive we can stick in our old car and make it a little easier to deal with so we couldn't wait for someone to wipe out a feather duster so we could scoop up the trans and stick it in our cars. Didn't take long to figure out its not a great swap. Like I said, the gear spread was not exactly great for performance driving and whenever it was installed in front of a stout smallblock the life expectancy was pretty short compared to a standard 833. Even though the internals are essentially the same the problem comes where the torque in 4th gear is routed through the countershaft and the case where the countershaft rides (especially the aluminum case) was not designed to handle that power and they will oval out. I would encourage anyone here to follow your dream and build anything you like but I can certainly say that with years of experience at doing these same things that the results will be less than satisfying. I've probably owned a couple of hundred of the 833OD units and probably installed at least 50 in cars and trucks and none have lasted very long nor were the owners happy with the way they drove. To date Mopar has never built any 5 or 6 speed that is easy to retrofit into a muscle car. They are great for cars that you are trying to get maximum mileage out of (which is what Chrysler built them for) but when removed from that realm they don't really shine.
My Son just loves to prove me wrong by contradicting everything I have learned over the last 4 decades and I always end up saying the same thing to him that I will say here. "go ahead and do it and let me know how it works out for ya"