Topic: Just for the tech....teach me to part a bomb proof dual tcase setup.

[copeland]

Ok so I have a dual tcase setup (83/84) top shift gear driven. Now If I remember correctly the 83 is the reduction box and the 84 is the complete case??
So what can I add to make it the bomb diggity?

We're going with a 1996 4 runner:

3RZ > W59 (23 spline output?) > I would need a V6 adpater here (23 to 21 spline conversion) > 83 gear box > Adapter > 84 Tcase

Where can I beef it up....where does the cryo'ed output shaft fit in? (from the 83 to the 84?) If I wanted to add 4.7 gears would they be better off in the gear box or tcase?
I also want to twinstick the 84 tcase...

And also how tough is the w59 compared to the r150? (Iknow the r150 and r151 are the toughest trannies??!) will my dual cases bolt up to both the w59 and r150 IfI get the v6 adapter?

[79coyotefrg]

you will want to swap  the inputs  in both crawl box and tcase  to  23 spline

[copeland [OP]]

so it would just be 23 spline w59> to 23 spline 83 gear box > to 23 spline 1984 tcase?

rhetorical questrion?!? but does the 23 spline output shaft accept a 23 spline input ?