I have a 1987 4Runner 4-Cyl with a topshift t-case behind a W56 5-speed tranny. My tranny is going out and will be replaced. Since I am replacing the tranny, I will also do a couple of other: replace clutch, slave cylinder, and rear main seal.

Since it is down, I would like to do dual t-cases. I have been going through a bunch of threads on dual case and read a couple of things that confused me. Please help me clear it up in my head.

The consistent thing that I read was that the rear t-case needs (mandatory) to be a top shift case. My question is on the front t-case (crawl box). I have read that this needs to be a front shift t-case, but then I see pictures where the front t-case is a topshift Can the front t-case (crawl box) be a top shift t-case? I am thinking yes.

Based on my thinking the alignment of the drivetrain is as follows: engine-clutch-bell housing-tranny-top shift case-dual adapter-top shift case.

Since I want to keep my center console and not lengthen the stock shifter hole, I want to buy the triple stick shift kit.

List of parts I need to do the duals (dual 2.28s, 21-spline) with triple stick is as follows:

1) my rebuilt W56 tranny with my existing topshift case
2) dual adapter kit (Marlin MC07 or Trail-Keeper)
3) 2nd topshift case
4) triple shifter kit and rubber boot (Davez Offroad)
5) Extension cable for speedo and 4wd light
6) Dual case crossmember
7) upgraded t-case mount (kit from 4xinnovations)
8) upgraded rear motor mounts (kit from 4xinnovations)
9) lengthen front drive shaft, shorten rear drive shaft

Anyhing else?

 

The front case can be top or forward shift.