Best 833 to use?

[Clayton haske]

I'm starting a build on a 74 dart swinger, and would like to know what's the best 833 to put behind a 425hp/425tq 5.7 hemi? I know it will work, but don't necessarily know what ratio transmission to use. I don't want an OD unit, any recommendations on which one to use? Thanks, Clayton.

 

[twayne24365]

a body a833 with standard 2.66 first ratio.
that's what's going in my 383 swinger.

 

[Clayton haske]

18, or 23 spline?

 

[twayne24365]

mine is a 23 spline....is the 18 spline better, yes. but for what you and I have, the 23 spline will certainly handle the task no problem.

 

[MoparGreg]

What rear ratio are you running

 

[Clayton haske]

What rear ratio are you running

Idk? I don't want it reving really high while cruising, but, I also want a little bite off the line. What would you recommend?

 

[twayne24365]

I have 4.56 gears, but if your going to do some cruising I like the 3.91 gear,

most importantly tho, what size rear tires are you going to run?

 

[Clayton haske]

I have 4.56 gears, but if your going to do some cruising I like the 3.91 gear,

most importantly tho, what size rear tires are you going to run?

Probably around a 295/50/15

 

[twayne24365]

that tires like 26.5" tall I believe.
what type of driving are you going to be doing? just around town, highway?