8” IFS Clamshell w/FRS Torsen

According to ZUK, everything looks good Sending a 3.91 3rd to him now for new bearings and a TrueTrac

 

You'll like the trueTrac, I got one installed when I re-geared to 4.30 and I believe it is worth every penny.

With this great outcome, I am now tempted to upgrade my front open carrier to a LS just like you did. This was a great research and I am glad it turned out so well for you.

Now if you would excuse me, I need to run to the corner store and get more popcorn and liquor so I can keep watching this thread.

 

Just as an FYI, there are some older style torsens that came in JDM Supras. I think they'd probably still require at least some trimming of the ribs, and I think the FRS newer style torsen is stronger and more readily available since it's not JDM specific. See these listings for an example of what I'm talking about.

https://www.ebay.com/itm/1989-1993-...-DIFFERENTIAL-DIFF-RARE-ITEM-OEM/262877150098
https://www.ebay.com/itm/JDM-Toyota...rential-1987-1992-Twin-Turbo-1JZ/122861363656

 

@dtaco06 @itaro @Airdog Hmmmmmmm......

 

FJ transfer case with this torsen front diff.... man I might be able to wheel as cool as you!!!

 

I'm just thinking of turning the Taco into a AWD banzai desert runner

 

I want to! Already awd just need this tto make it badasssssss

 

Time for the build finale! I probably won't have any significant updates for this thread until I get both diffs back from ZUK and installed.

 

Thanks to this post I was able to score a sweet deal on eBay for a 3.91 3rd, which ZUK says is in great shape.

So far, this is still a relatively affordable upgrade:

FRS/BRZ/86/is300 Torsen rear diff: $400
FJC front AWD 3.91 diff w/tube: $375
Shipping both diffs to ZUK: $160
ZUK front rebuild w/bearings: $900
Front Total: $1835

Tundra 3.91 3rd: $300
Rear TrueTrac: $500

 

Make sure the Tundra drive shaft flange works on your truck. I know that on Tacomas pre 2003 it has a different pattern.
Now would be the time to swap that flange or you can run an adapter or double drill the flange to attach your drive shaft

 

Picked up the front diff and this AWD transfer case, naturally the plug casing on the actuator got smashed into pieces during shipping. Any ideas on how to repair or adapt without purchasing a whole new unit?

 

Dosent look that bad
Is it just the outer casing or did it bend pins?

 

The outer casing, pins are slightly bent but look ok. I need to check and see if the receiver pieces are in the box, maybe epoxy them back on.

 

Op I am curious do you already have a manual transmission? I thought the fjc’s only came in awd for the manuals, which I think means that case wouldnt fit in an automatic tacoma. If so that sucks I’m going to have to convert to a manual too when I have enough $$ and time to do this.

 

I don’t remember the exact way, but it’s manual fj case will fit on the auto taco/runner
Look up fj case swap done by rst. He gives a lot of information about it

 

AWD case from 4Runner is another option but pretty sure you got that confused. Lots of folks just want a manual tcase and not necessarily an AWD tcase