a833od behind 383

350hp limit on od 4spd? Nobody told mine- I'm running an iron case OD in my demon with a healthy 408- eddy heads, 275hl cam. The gear spread can be frustrating if you're behind a grandma in traffic- you're either lugging or screaming.

I run an 8.75" rear with 4.11 gears. My old close ratio 23 spline was kinda boring- I would be in 4th all the time wanting another gear. The OD is awesome on the highway although I am a little ginger with it- 1:1 is still the gear for playing around. The 3.09 1st is short but spectacular.

Good luck!