Help ID a833

Idaho said
Kinda sounds like your shifter may have been located behind the rear mount with lengthened rods?

you got it
Also, Like said here;

d55dave said
Honestly there is nothing wrong with the OD boxes, even the long tail truck and van variants, they are the same length as a 727 and fit an a body just fine with a shifter adapter plate. Dont get caught up in the weak aluminum box overdrive ratios bs. They are plenty strong, offer a nice low first for snappy launches and a slight overdrive in fourth which is awesome on the highway.

I have put over 400hp into the first three gears, with a CenterForce II, and 295/50-15s tp 325/50 15 BFG- DRs, and powershifting it, and gearsplitting it; All without hurting it even a bit. So I'm guessing you can do same. It is only the M/S od gear that is fragile. When it blows up; the rpm hits the rev limiter, the teeth go everywhere, and shred the cluster gear. On one occasion, some of the teeth went into the input gear, and shredded that as well. On another occasion, I was able to drive a further 30 miles without any other damage.After a third occasion, I knew there was something wrong with me, because I seemed to have a hard time remembering NOT to speedshift into overdrive,lol. So I pulled the whole works outta there, and installed the Commando Combo, which turned out to be the best thing for my combo. It's been in there now since 2005ish.
That third occasion was with my winter engine; a stock long-block smogger teen with a TQ on it, And this time I wasn't even slamming it!