2wd R154 to 4WD?

[One9894runner]

I'm wanting to do a1uz swap like all the awesome people here. My issue is I'm trying
To locate my parts. I've found a R154 from a 89 supra. Can it be converted to a 4wd for 1989 4runner or would it be better to just find one from a truck? Please help.

 

[JustenGT8]

A million times easier to just get the AWD (4WD?) box. Ratios aren't the best for a Torquy V8.....an auto 4WD trans would be a better match I think?

 

[One9894runner]

Well come to find out researching a lil further r154 does not com 4wd. I would need a r151f from a 6 cyl Taco or 4Runner. If I can't find a r151f I think I'm going to run the sc400 auto the comes with the car.

The w56 that's in my truck, is there any strength in there to survive the 1uz?

 

[4U2QUIK]

If it's the w56 with the steel sandwich plate it should hold up to the 1uz just fine at stock power levels. Otherwise I would go with the post 96' R151F as it is 4wd and has the correct shaft length to be adapted to the 1uz.

 

[One9894runner]

Post? Ive been looking for 93-95 Taco or 4runner v6. What's the diff?

 

[4U2QUIK]

the input shaft is about a inch and a half too short for use on the pre 96 r150f transmissions.
post (after) 96 have the loger input shaft.

 

[One9894runner]

Would that make a diff on what adapters I use.. What would be the cheaper route to go?


#1. Custom r151f bellhousing to trans adapter

#2 auto trans bell housing with adapter plate

Guess I shouldn't say cheaper but the better route you prefer?

 

[One9894runner]

Looking on marlin crawler there are 3different applications of r151f trans...

1 88-91
2 92-95
3 96-04

How rare would you think it would be to locate one?

 

[4U2QUIK]

better off with option #2 less time money and expense.
and it's tranny #3,which while common, it probably will probably run 3-900$ from a junk yard.

 

[One9894runner]

I just need to get on the ball and try to locate one.. I know there are some import speciality yards around here. I should be able to stumble upon one at least.

 

[One9894runner]

Would say its easier to purchase the whole swap kit that u have online? Than to buy a diff housing made to fit both?